Ran into an odd problem, in Flow Simulation last night.

Once I have created all my boundry conditions in a new project...

• I click on Solver, RUN. 
• Solver Window opens (Mesh Generation) and nothing happens.  Everything is greyed out, nothing shows in the log, no warnings, Info is not updated.  It is almost like the window just opens and does nothing.  Nothing gets solved, no movement.

Any ideas?