it may sound a bit strange but maybe you have to reinstall windos... can't answer your question very well , never had such a problem... according to your explanation it might/must depend on your PC...
i still don't really know what you mean with decryption... the starting of the game when it looks for the original CD/DVD ?
Do you mean when it decrypts the main executable with the "code" it got from the CD/DVD ? Pls explain to me if i was right...
