id summary reporter owner description type status component version resolution keywords cc guest host 5223 None of my virtial machines will run since upgrading to VBox3 Richard "I am running Ubuntu 8.04 and have been using VBox successfully for the past couple of years. I recently upgraded to VBox v.3 and all was well for a day or two but then my Windows machine wouldn't open unless every time I opened in Safe Mode and then selected a restore point. Then it wouldn't run at all - it gets as far as the splash screen for Windows and then I get a blue screen. After this I uninstalled 3 and re-installed 2.2 but the same thing happened, plus my Ubuntu 9.10 machine does almost exactly the same thing. Log attached - Any ideas? Richard" defect closed other VirtualBox 3.0.8 worksforme Windows Linux