so audio cd's dont work AT ALL, data cd's (if trying to autorun) either dont pull up at all or crash the system. If it doesn't pull up at all you can goto windows explorer and browse them. Can you run these same cd's from windows explorer, or will it crash. Basically when you CAN get to the cd is it to browse ONLY or can you actually run the software. Also, instead of windows explorer, what happens if it doesn't run, and you goto my computer and try to acess the cd there. Either by browsing or dbl clicking the cd drive to initiate it. Trying to decide exactly what is causing the crash. Also, do you get a BSOD, any errors at all??? If you do goto details and see if you get an invalid page fault, or anything to help. If no error, cntrl alt del to see if you can see what is not responding. Thanks!