I am running windows 7. I have just found my cd/dvd disc player accepts discs and stops allows retreval. I have device manager drivers uninstall, reboot, loads new driver then banner says not installed satifactorially. at no time does the cd rom show in the computor banner, but is in device manager, no orange or red warning tags. tried sytem restore no good, have deleted upper & lower filters,no good. tried usb cd player, known to work, but wont install on computor. at a loss any ideas please. Al