Frustrating IPF error when trying Medal of Honor

[PC]

The message below appears when the game attempts to load. I have tried removing MOHAA and cleaning the registry, de fragging the drive. I have swapped installation to my second drive after repeating the above steps. I have tried a clean boot restart by going to msconfig and removing all the items that would normally end up in my bottom right corner. Nothing is working. The two installation discs appear OK as my friend was able to do a normal install on his computer and it starts OK. Heres the dreaded message:-

MOHAA caused an invalid page fault in
module ~DF394B.TMP at 0177:026b86b8.
Registers:
EAX=00000000 CS=0177 EIP=026b86b8 EFLGS=00010246
EBX=00004c26 SS=017f ESP=01d1f9cc EBP=01d1f9d8
ECX=00000cb0 DS=017f ESI=018ea1e0 FS=3c67
EDX=00007c14 ES=017f EDI=013de3e2 GS=0000
Bytes at CS:EIP:
66 8b 44 1f fc d1 e8 83 c0 07 99 83 e2 07 03 c2
Stack dump:
028bebf8 026d22f8 000000c8 01d1fa04 026780d0 00400000 028bebf8 026d22f8 000000c8 000000c8 00000000 02727e50 00400001 02731ad8 01d1fa78 026f5af8

So how can I tell what program is conflicting with MOHAA? I tried deleting all my temp files but that didnt do it. If I knew what generates "module ~DF394B.TMP" I could perhaps disable it while I play the game. After two days of trying I have reached the end of my skill level and now request help from you more skilled people. Thanks in advance. :(

[Theoran]

that seems to be a corrupted temp file that MOH writes to during game play.

I would make sure that all hidden files were shown and verify that you are removing all of these tmp files. I would also do a search for this file to verify that it is no where to be found.

[PC]

Thats what I believed but I have deleted all the temp files. I made sure that hidden files were shown. I was hoping there was some way of identifying exactly what application is conflicting with MOHAA. This is obviously a difficult one.