Hello stalion, yes, I have tried that, and on the reboot the autorun works fine, but when I switch off, the next time I switch on it has gone again, I have turned off "restore" but it makes no difference.
woodchip, you had me worried there :-) so I have just turned off, rebooted to safe mode and tried again with two cd's, one of my home made, the other a retail disc, both opened fine?
This is really bugging me, and such a small detail, can it be something within the registry, despite ccleaner and RegMechanic?
woodchip, I'm beginning to like you :-) got any idea as to how I can explore this? I have tried "update driver" within the PC but it already has the best driver available (within WinXP) the CDRom is a Lite-On LTR-32123S
You cannot update drivers for a CD drive as Windows provide Generic Protected Mode Drivers, If it's a CDRW drive the Software like NERO also loads Writing Drivers so you can write to a CDRW drive. But for a CD drive only it is controlled by the Windows MSCDEX driver file.
Have you tried removing the Drive from Device Manager this is the path to follow Right Click My Computer\Properties\Hardware\Device Manager expand CD drive click on the drive then at the top remove and restart computer and windows should reload the CD drive it may clear up the problem