I just downloaded the demo from yahoo and installed it, but when I go to run cod4 and when the splash screen comes up i get an MS error about iw3sp.exe and i have to close the program.

my computer specs are fine besides the CPU:

CPU

Minimum: Pentium 4 2.4 GHz/ Athlon 64 2800 (Intel & Athlon 1.8 GHz Dual Core or better supported

You Have: AMD Athlon(tm) XP 2800

is this why it wont run?

and i've reinstalled twice and downloaded from other sources like filefront as well (same error occurs from each source)