Purchased game 2 weeks ago...installed, ran fine, played awhile, decided to just delete (using Add/Remove) until ready to play in earnest. Today, decided to install and play. Did the correct things, took about 11 minutes, Disk l, and Disk 2 asked for and used, icon on desktop. Anyway, appeared fine. When clicked on Icon to play, got screen (checking CD), which was fine, did that before when I installed. Rec'd error: Wrong CD Key, etc. Error 18.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0. Swapping disks did no good. Ran virus scan...nothing. Ran spyware...nothing. So, uninstalled, using game Uninstall, which took a long time, and usead 'search' to make sure nothing left, reinstalled game, clicked on icon, received same 'checking CD Key' and error wrong CD Key again. I have worked on this problem all morning..no results. I have ran and re-ran everything.. I can put the Disk 2 in, and it checks CD Key, and it appears to work, but it loads about 3/4 way, then hangs. Suggestions??? Remember, folks, this was installed two weeks ago, ran fine. I deleted...now tried to reinstall and cannot get the game to load. I know it installs because there is the folder, files, icons, etc. But this checking CD Key business and error is getting to me. This game was expensive and sorta would love to play it....thanks....