Multiframe Student Licensing

Hi...I'm an architecture professor using Multiframe in my classes on structures for architects.

This semester I'm having a  problem where some students are getting only a two day or 30 day trial license. This has never occurred in the past. There doesn't seem to be any pattern to which version of Windows is being used, and whether native or on a Mac with Boot Camp or Parallels. Some students are fine, but there are a small cluster having this problem.

Any ideas?

Thanks,

Deborah Oakley, AIA, PE

UNLV School of Architecture