I just got a new Leadtek WinFast A250 Ultra: GeForce4 Ti4600 128 DDR MB.
everything is fine with the card until i try to play a 3d game ( Counter-Strike). In the game there are a bunch of black lines that show up in places and move around as i do, and the graphics in the far backgrounds is kinda jagged. I know the graphics should be better than this

. I have installed and updated all the drivers for this and have put the card to all the right settings.
Does anyone have any suggestions?