I have a Dell Inspiron 3650 desktop. I have just updated the BIOS for the first time, because it was "urgent". Anyway it all worked more or less ok except for one major issue. My CD/DVD-RW device is being recognized by the system but will not recognize any disk inserted. It won't even eject the disk, have to do it manually. It's like there is no power to the device, but I know there is. I want to rollback/downgrade to my previous BIOS settings but am prohibited from doing so due to the security settings of the upgraded BIOS. Is there a way other than buying a new motherboard? I have also tried the usual resetting the BIOS the normal way as well as removing the CMOS battery, but all that did was mess up the time and date. Are you able to help me? Many thanks for any help.