said by disconnected :It looks like this function is totally broken in Windows 7. Lots of complaints about it if you Google the topic.
Did you try disconnecting the burner to see if that is the problem? Disconnect everything you possibly can and see if it works.
I don't think it is totally broken - I've yet to see the issue on any win7 computer. My guess is the hardware is telling win7 that it is in use, which is why the screen saver never comes on and the screen never blanks.