I purchased a replacement DVD R/W for my Dell Inspiron E1505. When I start up the computer the light comes on the drive and I am able to open the drive by pushing the button on the drive. my problem is the drive does not show up on "my computer" nor in the device manager. I updated my BIOS from the Dell website but that did not fix the problem. The seller said he tested the drive on laptop the same model as min and that it worked. Any help would be greatly appreciated.