Hello. My dvd-rom is not detected by the motherboard. It won't boot to windows installation or anything. In windows it won't show my dvd-rom in Computer. But in device manager I see some kind of CD/DVD drive. Anyway I can't use CD's/DVD's anymore. Any suggestions what to do? BIOS is up to date. All connectors are connected properly. THIS HAS HAPPENED RIGHT AFTER WHEN I UPGRADED TO RADEON HD 6850. Motherboard: Intel DG33BU Thank you.