Install PCI-E X1950 Pro. PC on /all/ afternoon. Download, play some music & browse net.
Run 3D Mark 06, then play some Colin McRae Rally 2005 & Colin McRae Dirt. Everything A-ok. Switch PC off.
Come back from dinner, load uTorrent then play Crysis SP Demo, set all details to Medium, then set about game (fuckin amzaing GFX btw), get to the end of the sand section where it turns into jungle, whole screen turns into checkered artifact land. Exit game, Windows is the same atrifacts.
Re-boot PC, Windows display fine.
Load and play Crysis SP Demo, artifact checkered city at same place.
Check GFX for extra warm heat. Its fine.
Do I needs a new PSU?