Hi. I've been having this problem plague me for 6 months now and I haven't been able to pinpoint the problem. I'm running an AMD X2 4200+ with 2gb ram on WinXP with SP2.
Problem: Between 24 - 96 hours of being constantly on, at some random time my computer will take a dump. I will lose internet connectivity, programs refuse to load and give me the 0xc0000142 error message, if I'm playing a game while doing this and alt tab to windows, the desktop resizes to 640x480@60Hz. Other times sound will die, sometimes it doesn't.
Any help is greatly appreciated.