virtualbox.org

I have just upgraded to 4.0.6 and the XP guest system now fails to load. It starts - XP logo appears microsoft dots appear as if starting but after 5 - 6 seconds the system changes from 'running' to 'stopping' and the operation closes down. My other guest Ubuntu loads and runs without problem. The XP guest system has worked well for the past year on previous releases. Any ideas? Host = Windows 7 64bit

I call upon the great god Dingus to send me data on this problem! ... ...

Nope, that didn't work, so it looks like your log file will be needed instead. Posted as attachment please. Get it from the "logs" folder of the VM.