pack and go problem

Hi Gents -

I'm trying to create a zip file using pack-and-go.  I've never had an issue before 2010 (now on SP2).  When I try to create the zip file, I get an error of "library not registered".

I tried a reboot of solidworks and the computer, thinking maybe something was "hung up" somewhere, but that didn't fix the problem.  Does anyone know what might be the issue?

thanks!

Joe

SolidworksAssemblies