vista beta 2 problem

Just installed it. Upgrade from xp pro sp2. Seemed to install great, although it took 3 days (kidding). Upon boot it brings me to the user select screen. I select my username and it goes through the following steps:
1)logging on
2)preparing your desktop
3)closing your desktop
4)logging off
Then, it brings me right back to the login screen. I've tried going to safe mode, but to no avail. Anyone help? Thanks.
1)logging on
2)preparing your desktop
3)closing your desktop
4)logging off
Then, it brings me right back to the login screen. I've tried going to safe mode, but to no avail. Anyone help? Thanks.
Comments
Good luck with your copy of Vista. I wish I could have been some help becuse if nothing else, it's pretty to look at.
Working on 70-270
Working on 70-270