Nero Cover Designer Problem, any ideas?

Hey, so My nero cover design use to work fine, and then all a sudden I been getting a strange problem. When I am trying to make a lightscribe label i press print and it bring up a prgress bar and goes right to 100% and says printing completed and ejects the disk. I can’t think of any changes that have been made since it worked untill this problem started so if anyone knows what might be causing this I would love to know.

Im using Nero 7 Ultra Edition
Cover Design2
Windows XP

Thanks for any help