Civ IV has all sorts of nasty copy protection on the disk, to the point where I (and many other people) had problems playing it under XP on a real PC. Bad CD's, copy protection that interfered with PC operation, etc. My solution on my real system was to get a no-CD 'patch' for the game, and then everything worked fine. It really sucks when the copy protection of a game punishes people who acutally buy the game, but not those who illegally download it, but that's a rant for another day. You might want to try a similar tact under Parallels...
By the way, CIV IV requires Direct X 9, which (to my understanding) Parallels does not support... does it install and function?
Last edited: Apr 25, 2006