i'm about 99% certain its my network card and my hard disks... windows will run stable, i've run a full night of sandra burn-in at 155fsb without any problems, but when i try to use the network card, it goes whackjob... or when i reboot, it always wants to run chkdsk... off topic there, i have an 80gig seagate barracuda IV coming, with a mobile rack for my PC60... should be fun 🙂