cobalt cd "check disk

Daughter has a 05 Cobalt. When the CD player powers up, it shows "check disk". When you push the eject button, it says "no disk". She does not know if there is a disk in there, can't see on looking in. Anything I can check? Thanks for any help!

Backally

Hay , i saw your message and i have a 2006 CHEVY COBALT AND ITS DOING THE SAMETHING, IM GONNA GO THE THE DEALERSHIP AND SEE WHATS GOING ON, I THOUGHT I WAS THE ONLY ONE. MY EMAIL ADDRESS IS diannacrr@yahoo.com