id summary reporter owner description type status component version resolution keywords cc guest host 11723 Seamless Mode Crashes VBoxManager => Fixed in SVN seancoy "When moving a window (in X on guest Centos 6.2) with seamless mode enabled the VM crashes with error: Oracle VM VirtualBox Manager Has stopped working. Faulting application name: VirtualBox.exe, version: 4.2.12.0, time stamp: 0x5167d6dc Faulting module name: VBoxOGLhostcrutil.dll, version: 0.0.0.0, time stamp: 0x5167d68b Exception code: 0xc0000005 Fault offset: 0x0000000000016fa8 Faulting process id: 0x1a48 Faulting application start time: 0x01ce3a03b049c2db Faulting application path: C:\Program Files\Oracle\VirtualBox\VirtualBox.exe Faulting module path: C:\Program Files\Oracle\VirtualBox\VBoxOGLhostcrutil.dll Report Id: 5102ec78-a606-11e2-99c9-a02efbb717d5 This is replicable everytime. Have rebooted guest and host. Does not happen in windowed mode. No sign of crash in logs on guest. Guest: CentOS release 6.2 (Final) Host: Windows 7 SP1" defect closed guest additions VirtualBox 4.2.12 fixed Seamless Mode Linux Windows