HELP! MY CD-ROM DRIVE DISAPPEARED WHEN I GOT COMCAST INTERNET

[StimpackAddict]

I have no idea what happened, but my CD-Rom drive completly just vanished, and now I am getting a message that the secondary drive (which is the Cd-Rom) is not recognized. I looked in the bios setup and it says it is not even installed, when I have used it about 2 weeks ago. The only thing that has changed with my computer is when I installed comcast cable. Do you guys know whats wrong?