Microsoft Windows XP Pro SP2
AMD Sempron 1.40GHz
448 MB of RAM
ASRock K8Upgrade-VM800
Computer freezes, monitor displays white screen with columns of horizontal lines (colors of last display) and one square of vertical lines. This happens 5-15 minutes after the desktop is displayed as I open folders, browse internet, etc. The thing is when it is idle after desktop is displayed, it does not freeze or anything.
Monitor works fine because I tested it with other CPU.
Thanks in advance!:$