Did you try the epic games page. They have a FAQ section there that has a lot of the error messages on it. Also, try the troubleshooting phone number in the back of the manual. It costs money, but it can be pretty helpful at times.
Another solution, that they will tell you, is to copy all the files from the CD to your hard drive and reinstall it from the HD, you will still need the CD to play, but it may fix the prob.