Just bought new system. Brand is E-machine P6528 AMD Aphlon 64 processor 3500 plus 2.21 GHZ 384 mgabytes ram running XP home edition with SP2. Had modem installed last night by friend and DVD drive used to install drivers. Went to use DVD drive and it is no longer working. Windows explorer shows it as being present, device driver shows it as present and that thier is no problem with it or hardwre conflicts. Device is enabled in properties. When I put music or data cd into the drive, computer doesnt respond. Have run windows trouble shooter without sucess and also removed and reistalled driver without sucess. Any suggestions, could the modem installation have caused this problem and how can we solve it.