id summary reporter owner description type status component version resolution keywords cc guest host 5585 Suddenly blackscreen appears in guest system robert oh. "My problem is that all of a sudden my virtual Windows Vista box only starts up with a blackscreen and I can't work with this virtual box any more. I can see the Windows Vista loading screen but after that ... black! You'll find the log attached and hopefully you can help me! robert.oh. " defect closed other VirtualBox 3.0.12 obsolete black screen Windows Windows