my screen looks like brokin glass

i got this problem with the game that when i play the game i can’t make heads or tails of what’s going on cause the game playing screen looks like brokin glass .
the main menu looks fine but the single and multiplayer graphicly runs bad .
i got a ATI Rage 128 with a p2 celeron 13 GB HD AND 480 MHz. all my drivers are updated and i got an A-BIT BE6 BOARD .
can anyone help me.