Hi guys,

I have my Dell 8300 about 3 months and i've a strange problem with my  Radeon 9800XT 256mb graphics card. i get this strange "check-board" effect on certain light sources when playing games. On any white/clear light a weird checkered box effect appears and in dark games (like Thief 3) it totally ruins the game to have a checker board slapped across the screen!

I have been told to just request a new card as the computer is only 3 months old and it definetly shouldnt be doing this..any one have any suggestions?????  is it just a driver problem or is it something more serious? I have tried Omega and Catalyst drivers to no avail....