I have a Soyo K7ADA, radeon 7200 DDR, and it crashes constantly when playing games using all the recent drivers in XP. It has something to do with the ati2dvag.dll file being in an infinite loop. Mine doesn't reboot because I disabled the automatic reboot upon failure feature. Everything works fine with the driver that comes with WinXP, but that doesn't provide OpenGL support I believe. I still haven't found a solution to the problem.
It works great in Win98 though.