I updated to Windows 7 from Windows Vista and now my CD/DVD drive doesn't work. I have a Dell Vostro 1700 laptop, it came with Windows Vista, but I recently installed Windows 7. Now my disk drive will not recognize any disks. I tried deleting the upper/lower files in the registry that itunes uses to mess up the drive and it did nothing. I have a Pioneer DVR-K17YA SLIM 8X DVD+/-RW, I've tried reinstalling the Bios and reinstalling the driver, it still will not work. What else can I do? Is this drive even compatible with Windows 7?