Sorry i havn't been on latley, mostly school and shit. @gilaroti Yes there is. Turn down you video settings : resolution, anti aliasing off, shadows off. That all worked for me. @everyone Else Im running Windows 7 32 Bit, using a nVidia GTX 260, 4gb of ram and having no problems. My COD4 res is 1920x1080 Anti-A. off and shadows off. The rest is default. Try closing other programs on start up like bittorent downloaders and whatnot. On Startup i only run Xfire, Power Iso and AVG.
I am quitting COD4 by the way, if i do come aacross a good hack like this i will be sure to re install and release it to the MPGH community.