After Windows 7 froze up, I had to turn the power off. When I turned it on again, it said that there were no disks in the computer! After a few tries, it finally saw the hard disk and dvd drive, but: The DVD drive won't read any discs. Windows just keeps telling me to "put a disc in the drive". I've tried many discs, including CDs I've played before, and nothing works. I've uninstalled the drive and restarted the computer, it reinstalled the drive, but it still doesn't work. My printer (Samsung ML-2010) was first "offline", then, after I unchecked "Use printer offline", I got "Printer error" when I tried to print. I removed the printer in the control panel, but when I restarted the computer, Windows 7 doesn't find it. I can't do a repair install because the DVD drive doesn't work!