I have similar problem with that drive on my Samsung but my hard drive is working fine. The DVD is not seen by bios but the hard drive does. I found funny solution, when I have my old DVD drive installed, everything is working ok. I switched my computer to hibernate and replaced the drive. When it starts its working ok and new drive is installed on the system. Unfortunately, when I restart system there is no cdrom drive there anymore so I need to put the old one to get it work and then replace again without restarting the system. I bought that drive on eBay from Malaysia.