I have a Inspiron 1501 Mobile AMD Sempron™ 3500+ (1.8GHz/512KB), Genuine Windows® XP Media Center Edition 2005 and has a Combo DVD+RW drive and after watching DVD movies the drive is missing from the "My Computer " view and under the "System" it shows bad or corrupted drivers? Why does this happen? and this has happened twice since I have had this computer since December? What is wrong is it the drive? or the drivers? or the Movies themselves? Please help?