CD-ROM status doesn't change - [FIXED]

OK, I had this problem before at home and I fixed by re-installing Windows XP :p
When I insert a CD into the CD-ROM windows does not detect a new CD. For the name to change in Windows Explorer I need to restart the PC. This is not that much of an issue since I can stil access the files inside the CD by double clicking the CD-ROM, and then I can double click setup.exe, or autorun or whatever I need, but it is really bothersome for games, since some read the label.
Any idea how to fix this?

SFC /scannow

I did it and it took a long time, but I haven't test it yet thought. I will let you know

IT WORKED!!!!!!!!
TKS a million
BTW, what does the command do?

http://support.microsoft.com/kb/310747

Got it. Now I also understand why my themes are not working :p It replaced the utx as well.