Welcome:)...belatedly. Glad to hear you were able to find a work-around. Thanks for reporting back with your solution. I did see you message last time and researched it online for about an hour and couldn't find anything worth posting about. I did some more searching this time and found nothing concrete, but I will share a few links that you can dig deeper into if you desire....I hate to think that someone would think that we were not a helpful bunch here:).
this led me to this. Since it may be a registry thing, I was wondering if the system had any other burning software on it, like Roxio, which has been known to be very combative with nero and tough to remove completely from the registry. Did you also run the nero reg-cleaner and driver-cleaner tools?
If all that fails, you could post a Nero Infotool(Nero>toolkit>infotool) output. Run the tool, then click the diskette icon in the infotool toolbar and save as a .txt file, making sure all 8 boxes are checked. Attach to post using the 'manage attachments' button in the 'go advanced' reply window.