Optical Drive MIA

I just turned my machine on and went to install a new program and nothing happened (auto-load didn't kick in). Checked my Windows Explorer and both of my DVD drives are not listed. So, I rebooted and still the same thing. I went into device manager and the Optical Drives are shown but with the "!" Yield symbol.

What gives? These drives were working just fine yesterday!

Help! Need to install this program ASAP for work...