Okay, I got CoD4 a few months ago, and i play single player and multiplier. I played MP for a month, half of that time was with my motherboard's video card, and the other half was with a Visiontek Radeon HD 6870 PCIe x16 Gen 2.0 Eyefinity 6 Edition. (link: [ Register or Signin to view external links. ] ) So one day I wanted to play CoD4 on the PC and I get the iw3mp has stopped working problem. I looked it up and from what I have read it is a sound issue. I have done everything the internet has said to do and it still gives my that problem. I don't know what to do now and that is how I got here. If anybody can shed some light on this please do it.