I removed COD4 tonight and reinstalled the whole thing. This time though, when I was patching it, I stopped after each patch and played the singleplayer to see if it was okay.
Then after I patched it 1.7v I setup the multiplayer section and then reinstalled my saved profile.
I played for a few minutes and no hiccups. So I hope it is fixed. I was able to get 155 fps on my single video card, which is good.
The only thing I can think of that screwed it up before, was that, I just patched the game from 1.2 to 1.7 without opening the game in between. Maybe something didn't
work right when I did it that way.