Sorry if this has been asked but my xbox 360 elite dvd drive will not detect discs at all. I sent in my 360 about 5 months ago to get the RROD fixed and got it back. Now it won't detect discs at all. I have no warranty on it and am wondering what to do. Should I open it and try to fix it myself or spend the $99 to have MS fix it? Thanks for all your help!