XP crashes on start-up with suse 10.1 host

Trying out beta 2.2 with suse 10.1 host. Most everthing working well (except usb--no go with that), but after a few days of use, when i power on windows, it crashes right after the XP logo screen appears. I get a quick flash of a blue screen, but too fast to read what it says. When I restart windows, I get the options to start in safe mode, last working session, etc. If I choose, last working session, then it will boot again. Not sure if this is a beta issue or what, but wanted to bring it to the attention of the list/devopers.