nuxeman i finally fixed it and this may work for you. The problem was that the drivers werent installing properly what i did in the end was remove the drivers using add/remove programs in control panel. then i installed a new set of drivers (not drivers for a wireless keyboard)ie not the correct wireless drivers just any old ps2 drivers . then i rebooted uninstalled those drivers and then installed the proper drivers.
I'm no expert but i think that the drivers wont uninstall properly until you put a new set of drivers in and something of the old drivers keeps getting rewritten.
anyhow this worked for me as i have a clean game now
let me know how you get on?
hope this helps mate as i struggled for weeks with this problem