Hello, I'm having trouble with my Windows 7 disc not being recognized by my CD/DVD drive. Other discs work fine in this drive, and the Windows 7 disc works fine on other computers. I obviously didn't install it onto the other computers, but just checked to make sure the automatic prompt started up. When I put the disc in, the automatic set up prompt does not start and I can't find any files under the CD/DVD drive to start the set up. Any thoughts? Thanks in advance.