im having a problem with my new 9800xt 256mb.i mainly play counter-strike on my computer and ever since I got my new video card I see a green flashy round spot somewhere in the map and in source I see little green spots on the ground...I really dont know what to do...either my video card is defective or either...you tell me

.im currently using the new omegadrivers but dats not the problem...anyways thx for ur help !
Intel P4 3.00Ghz WITH HT.800FSB 1MB L2Cache,Asus p4p800-se Motherboard,ATi Radeon 9800xt 256mb,512mb Kingston pc-3200 DDR 400mhz,130G maxtor HD 7200rpm