DVD drive lost!

[wiseitalwaysme]

I installed Windows 7 and after my time expired I was forced to reinstall Windows Vista. After the reinstallation, my laptop (toshiba x205-9349) does not recognize that the disc drive exists. I've searched many forums and tried to delete the Upper/LowerFilters like the majority of them say to do and still no luck. My bios does not recognize that the drive exists either. This is a new drive as the laser of the first one died on me. Any thoughts? Any help is kindly appreciated! Thanks you all of your time!

 

[wiseitalwaysme]

I've just realized that my subwoofer doesn't work as well...so i'm assuming the drivers of some of my hardware devices are not working. But I tried to install a new driver for my hd/dvd player and it says it cannot install because the device does not exist...which i'll assume would do this for all the "missing" devices. What can I do? Please help. Thanks.