I too replaced my recently dead 9800xt, with the X850XT. I expected to get about 3x performance boost, but I can't even break 2000 on 3dmark06. I use I875 MB,1gb ram,2.8 processor,winXP,most recent omegadriver, with 160GB SATA HD. Any clue where the bottleneck might be? I know the 2.8 is a bit...