Thanks bhs, but I got the bios set finally.

Norval I have done it and it works now! Thanks! The problem was it showed no hour glass or process running and I didn't realize it was working at first!Thank you for the tip!

Still wondering if anyone can tell me whether it's necessary to clean and back up the registry BEFORE I can uninstall and then reinstall the dvd burner?

That's the question of the hour...