Can't select Liteon 851 on Nero Info Tool or Nero CD/DVD Spped

I have an external 2.0 USB Liteon 851. When I install both Nero programs it only shows my CD writer and my DVD-Rom but not the Liteon in the selectable drive window. However, it shows the Liteon drive under the Nero Info Tool “configuration” page, but it won’t let me select it under the main page because it doesn’t show it. I’ve even disconnected either drive (CD writer and DVD-Rom) and it still won’t show the Liteon on the main page. When I disconnected both, Nero Info Tool wouldn’t run. For some reason, its not picking up the Liteon as a drive. Anybody have any ideas???