I had the same problem Sent laptop back to dell and it work ok but when I check my microsoft rating by nvida cards were not turned on. after much trouble shooting I found out the bios installed needed to be changed. Go to dell and have the site check your machine under drivers. If you download each driver one at a time you might get something about your dvd drive you need to make a copy of the bios update and follow the direction on how to load. This is not very hard to do. I had problems for two years with the problem getting worse. So far this fix is working.