FYI = for your information.
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no im not exactly shur that 6000 is normal for your system, i never used an ATI card, but im guessing your probably near were you should be. some one with ATI experince could give you a rock solid answer, but im guessing your scores normal.
my A64 3700+, 1GB ram, 6800GS PCI-E all at stock speeds, score 5100 in 3Dmark05, and i know thats exactly were it should be for Nvidia... and i never ran 3Dmark06, but i hear 2300 is about normal for my system.
the other thing i can tell you is that 6100 is near stock score for a 7600GT.
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See if you maybe able to see a problem with your DX installation, by going to /start/run, type (dxdiag) hit enter, go to /display tab, run both the DirctDraw and Direct3D tests.