[Patton]

Try this: Uninstall the game.

Delete your EA Games folder.

open regedit (start -> run -> regedit) and search for and delete anything that says 2015, MOHAA, or EA Games (unless you have other EA Games.)

Copy all the files from both CDs to your hard drive. Put them in separate folders called Disk1 and Disk2 respectively. Run the setup file from Disk1, and then when it asks for Disk 2, point it to the directory where you copied all the files from Disk 2 from.

I had a similar error, but it was with Single Player. I could play some levels, but not others. It turns out that my CD-ROM isn't working properly, and it corrupted the files during the install.

Also, try the following: Update DirectX (if you don't have WindowsXP) and update your video and sound card drivers.