On my Vostro 1500 I tried today to play a previously installed (and playable) computer game.

A gray box popped up saying that no CD Driver was found. In the My Computer page...it doesn't show up at all.

I haven't changed anything and can't understand why the computer no longer shows the drive. How do I get it back? In the device driver the driver has a yellow explanation point. I right clicked. (error code 39)..tried the troubleshooting and all it said was that it could't install or find anything.

Help please!