Hi
Firstly you don’t any driver for the CD/DVD drive. The drive uses the standard Windows OS driver and it’s not necessary to install it additional.
I assume there could be something wrong with the registry entry.
Please check this forum posting:
http://forums.computers.toshiba-europe.com/forums/thread.jspa?threadID=13843
The user has used the instruction which was offered on the Microsoft site.
This should help.
Please post again if this method was successful.