Last week we started doing a couple of test deployments of SP2 for winXP
The machines ran fine for a couple of days, then one day, one of the machine would automatically reboot itself during login. A couple of days later it started happening on the second machine we tested on.
What would happen is, the user logs into the domain, it finishes loading policies and settings and then just reboots right before the icons would normally start appearing on the screen. If the users logs onto a local account on the computer, it loads just fine and doesn't reboot...so it would seem the problem is a conflict between SP2 AND either roaming profile or domain policy.
I disabled the automatic reboot in my computer->properties so I could see what the stop error was:
Seemed to switch between 2 errors:
Searching on those 2 errors I haven't been able to find any articles that seem related to my issue.