My (2) CD/DVD Drivers disappeared from "My Computer" this morning. Here's what I've tryed to no avail. In device Manager they are there, but not loaded (yellow circle with ! in the middle). Tried to update drivers, uninstalled drivers from device manager. When I re-boot they come back "yellowed out". Did a system restore. Ran Disk Doctor. Ran Registery Cleaner. Shut down the computer after each attempt. Deleted these drivers from device manager and ran "Install New Hardware - this finds the drivers again, but they are still "yellowed out"?! Any help will be greatly appreciated. I'm usually pretty good with this stuff.