2005.even

hi guys, i have a problem with the reults shown by 3d mark 2005. my pc config. intel P4 3.0ghz (630 with ht tech. and 2 mb l2 cache),a 7800gtx 256 mb card,antec true 550 watt upply,250 gb western digital hd,2 gb ddr 2 ram. with that type of system i get only a score 0f 500 in 3d mark 2005.even...