id summary reporter owner description type status component version resolution keywords cc guest host 2515 Windows Vista x64 Guest Crash Jason Henley "Hardware: Dell Latitude D620 with an Intel Core 2 Duo\ Host OS: Ubuntu 8.04.1 x64 Hardy Guest OS: Windows Vista Enterprise x64 At seemingly random times, the machine execution stops and I get a mediation guru error message. There doesn't seem to be a particular event that triggers it. I have had it crash while installing Vista SP1, and I've had it crash while it was sitting idle at the desktop and I was playing a video game under Wine in the host OS. This is pretty reproducible as I've had at least 8 crashes in the past two days alone. Due to issues I've had with an x64 guest and the SATA controller, I have this particular machine running IDE. This problem is only apparent on the x64 guest. When I install Windows Vista Enterprise x86, I have no problems whatsoever, even with the SATA controller enabled." defect closed other VirtualBox 2.0.4 fixed Crash Windows Vista Enterprise x64 Windows other