MOHAA/spearhead

[Red Tek BSA]

ya it could be. but the thing is that i have an orginal medal of honor AA game. i bought in january in canada so its the US version. the cd key has to be valid to. because i tried to install MOHAA at at a different pc at my home so that i could try if my sperhead copy works there. and it did. so that cant be the reason for that. please help me!!!!!! i really need to play the add on for the best game o the year!!!