id summary reporter owner description type status component version resolution keywords cc guest host 7779 Dock issue causing log pollution when using Spaces RJVB "An issue exists in VirtualBox's handling of the Mac GUI that causes a huge numbers of kCGErrorIllegalArgument errors to be logged by the Mac OS X Dock each time one changes Spaces. This happens regardless of whether I set the VM Dock icon to reflect the VM screen or not, whether I'm in seamless/auto-resize/fullscreen mode or not. Here's what I copied from system.log after going back and forth twice (4 Space jumps): Nov 30 10:39:14 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:14 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:14 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:14 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:14 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:14 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:14 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:14 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:14 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:14 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:14 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:14 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:14 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:14 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:14 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:14 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:14 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:14 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:14 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:14 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:14 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:14 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:14 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:14 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:14 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:14 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:14 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:14 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:14 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:14 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:14 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:14 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:14 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:14 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:14 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:14 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:14 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:14 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:14 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:14 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:14 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:14 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:14 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:14 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:14 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:14 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:14 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:14 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:18 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:18 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:18 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:18 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:18 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:18 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:18 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:18 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:18 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:18 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:18 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:18 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:18 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:18 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:18 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:18 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:18 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:18 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:18 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:18 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:18 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:18 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:18 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:18 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:18 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:18 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:18 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:18 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:18 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:18 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:18 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:18 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:18 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:18 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:18 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:18 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:18 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:18 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:18 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:18 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:18 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:18 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:19 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:19 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:19 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:19 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:19 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:19 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:19 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:19 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:19 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:19 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:19 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:19 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:19 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:19 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:19 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:19 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:19 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:19 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:19 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:19 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:19 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:19 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:19 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:19 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:19 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:19 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:19 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:19 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:19 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:19 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:26 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:26 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:26 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:26 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:26 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:26 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:26 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:26 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:26 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:26 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:26 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:26 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:26 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:26 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:26 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:26 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:26 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:26 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:26 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:26 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:26 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:26 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:26 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:26 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:26 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:26 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:26 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:26 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:26 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:26 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:27 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:27 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:27 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:27 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:27 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:27 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:27 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:27 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:27 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:27 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:27 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:27 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:27 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:27 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:27 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:27 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:27 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:27 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:27 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:27 portia Dock[217]: kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan] Nov 30 10:39:27 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:27 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformsAtPlacement: Singular matrix at index 1: [nan 0.000 0.000 nan] Nov 30 10:39:27 portia com.apple.Dock.agent[217]: Tue Nov 30 10:39:27 portia.local Dock[217] : kCGErrorIllegalArgument: CGSSetWindowTransformAtPlacement: Singular matrix [nan 0.000 0.000 nan]" defect new other VirtualBox 3.2.10 other Mac OS X