Looks to me like artifacting. Feel the heatsink on your 9800's core, and feel the ram with your fingertip. Is it very hot? Might I recommend you invest in some OCZ Copper BGA Ramsinks and some Arctic Silver Adhesive (to glue them on). When I first got my 9800XT I was using stock cooling and got artifacting in some games. Or alternatively you could invest in an Arctic Silencer. You will be able to get some overclocking out of it, and keep it very quiet (the fan is silent). Just make sure you buy the correct revision. There is about 10 different ATi Arctic Silencers out there for different cards. I was getting a similar color phenomenon like you were getting in BF2, but in HLDM once. That was a driver issue. As for the polygon problem, that is a form of artifacting. You might notice onscreen models appearing in random places untextured or golden colored. I used to get that in Far Cry when I was overheating. The CSS issue looks like RAM artifacting, or it could be GPU.
The point is, it's the card's way of saying "you fucking idiot I'm 10000C you stupid cunting moron put some better cooling on me you shithead".
![:lol:](http://192.241.182.11/images/smilies/lol.png)
BTW: Seventh and M_Gargantua, Kazoo has activated your accounts on HWA.