My computer locked up as I was burning a CD. When I rebooted, the computer was unable to find My CD rom or my rewriter. I've already checked to make sure that all cables were connected.They are also not listed in devise manager. In devise manager I show that the primary and secondary IDE controller Dual Fifo has an exclamation mark. I tried to load the windows 98 disk but again the system would not activate my CD Rom. Any help would be greatly appreciated.