I tried to install ati mentioned above and followed instructions to update my AGP Driver and chipset prior to install. I went on sis website and did as told and then swapped for new card. On bootup all I could hear was (CPU TEST FAILED) repeatedly through my speakers with blackscreen. Put the original GeForce 64 Meg back in and it boots up fine and runs O.K. What the dealeeo? Never had problems installing a card but maybe I updated the wrong driver or chipset. Strange! Any good ideas before I have to deal with the annoying non-english speaking helpdesk at ati?