After upgrading to WMP11 Sonic ran fine but would give errors when exiting. I uninstalled/re-installed Sonic and tried to roll back WMP 11 to WMP10 (unsuccessfully) and now Sonic won't re-install and the CD/DVD burner does not recognize ANY disc when inserted.
I tried a restore point back to the earliest one I had but I have the same problem. I installed a new version of Sonic and still no luck.
My next option is a complete system restore
