So I've been running Vista Business until today. My dvd drive has worked fine until I finished the Win7 Pro (32 bit) installation, and now my dvd drive is not listed in "my computer" or "device manager" at all. I installed windows 7, so of course it works outside of windows...and I can still boot off other discs and see the drive listed in the bios, but in windows, it's no where to be found. When I press the physical eject button, the drive momentarily appears in device manager, then dissappears again. The dvd drive is a "PLDS DVD+-RW ds-8a3s. Apparently there is a firmware update for it which I downloaded, but the installation fails, saying no matching drive is found, though the error message says I need the exact model that I actually do have, so it just can't see it. Anyway, any help would be awesome.