I have been trying to install COD4 for over 2 weeks and after lots of emails to the support desk I am no further forward. I hope someone here can help! Install proceeds normally through the CD key entry and punkbuster installation. However, just when it starts "Computing Space Required" I get an error message "1324: The path ? contains an invalid character", followed by error "1603: Fatal error during installation". This happens whether I choose the typical or custom installation. The disc installed OK on my old XP computer (too slow to run the game) and I have installed other games (Half Life2, Crysis) on this new Vista machine without problem. Help!
add me on xfire...redrock2002 ill try to help