Just installed a new video card Sapphire HD 3870. I go to run CoD4 and I get the ol iw3mp.exe error. Power supply is fine (550W). Another issue is that I cannot hear sound. ATI AA01 High def sound card. Never have had this problem with my old video card. Suddenly I install the new vid card and am having all these problems? Can anyone help? Thanks in advance.
-Lynx
-Lynx