Just finished a build with an AMD Athlon 64 3200+, nVidia 6800GT, Soltek MB, 2x512 Mushkin 3200. Installed XP and drivers with no problems. After ~ 2 hours operation, the display was covered in tiny red/purple dots (hundreds of dots) that seemed to twinkle. Shortly thereafter, the system rebooted itself and Windows noted an error that it wanted to report. The display still had the dots. Within ~ 5 minutes, the display froze (mouse inop), and I pressed the Power switch to shut down. Windows seemed to shutdown unevenfully. Any thoughts on how to proceed with troubleshooting? Thanks.