Nero 9 can\'t find DVD drive (Lite-On LVW-5005B)

[qanda]This thread is about the Lite-On DVD RECORDER DVD±R RW. Click here to see full specs[/qanda]Since installing Nero 9 I have 2 problems, a. DVD drive seems to have disappeared (nothing appears to be in drive although disc is in there); and b. Nero Showtime will not open has a error message “This feature requires Microsoft NET framework 3. or newer”. Have not had any response from Nero. Help please:sad: