ok so for some reason my computer cant find this game when i try to play it. its Command&Conquer The First Decade. i HAVE played it on the my computer before so its not that it cant run it and when i look for it under the computer folder it shows up so im pretty sure the computer know the disk is in there, yet it wont when i try to play it, it says Cannot locate the DVD-ROM. does any one have a fix for this. i tried reinstalling it but that didnt work either. can anyone help?