Dave,
I'm honestly not sure if this will work, but can you try it first? Please visit this site:
http://digital.ni.com/public.nsf/websearch/86256A47004E16D186256A99007BEFB7?OpenDocument
At the bottom is a license fixer in a zip file. You can try running that once it has been undocked. Let me know how it goes. Thanks, and have a great day.
Daniel McChane
Application Engineer
National Instruments