Well.. I'm both relieved and discouraged to find someone else having the same (or extremely similar) problem as I am -- for a while I thought it was my bad card and, of course, I lost the receipt.
Anyway... since no answer has been provided yet, I'll just throw in my info. My system has a fresh install of WinXP, which I put on due to it being required by the 8500DV. I'm about 95% sure I have the latest drivers but will check again tonight. My system specs are as follows:
Athlon T-Bird 700
40GB Maxtor HD (4 10GB partitions)
Windows XP Pro
DirectX 8.1 (came w/ WinXP)
Soundblaster Live Value
Currently unused generic NIC
Now I haven't had the luxury of the blue screen of death. My reboots are quick, ugly, and apparently for no reason. In addition to reboots, it also just freezes from time to time. I've even had these actions take place while the computer is in sleep mode.
Lastly, just to make sure it wasn't something else on my system, I threw in my ATI Rage Fury and I'm not having any apparant problems.
I notice it's been a while since this topic was started. Did the auto-restart trick work?