First step, would be to remove the game completely and the files from your computers registry. You can grab Reg Cleaner - free from www.download.com
. Which operating system are you running?
When you install, you will need alot of disk space to install to. Before installing, make sure you have updated your Direct X and graphic card drivers.
Re-boot the system and try launching the program again.
Make sure you have Disc 1 in a local CD/DVD drive.
Close all other running applications, especially things such as: Clean Sweep, anti-virus software, ZoneAlarm, and CD burning software (for example: Nero or EZ CD Creator).
If you have more than one local CD/DVD drive, try all drives.
If you have a Virtual CD Drive installed, make sure it is disabled.
Make sure you have updated drivers for your optical (CD/DVD) drive AND that you have the latest motherboard drivers available.
Make sure you wait for the disc authentication after the program launches. It can take up to one-half minute or more for initial disc authentication. Your mouse pointer may change into a spinning disc pointer while the disc is authenticating.