I have a Dell Dimesion 8100. It has an NEC DVD Drive, an HP 200I DVD+RW Internal drive and an I/O Magic DVD-RW DL external drive. My problem is that neither drive is burning any media cd's or DVD's. The I/O Magic drive is not reading any disks whatsoever. I've updated the firmware and the drivers on this drive. The only real change i made to the PC was install Tunebite. But since that has been uninstalled and still no luck. Any suggestions