Microvellum Community

MV Freezes As Soon as I Click "Walls"

Things have been running fairly smoothly since we got Microvellum in October. Suddenly today I started a new project and new room. I draw a polyline 96" long and then went to turn that into a wall. I got a spinny wheel for a second and then NOTHING would work. Ctrl ALt Del and end task 3 times, same thing. Opened different rooms, same thing. 
A co-worker opened my project on his computer and it worked fine.
Apparently I have a bug - what's the best step to take now? Do I need to reinstall Microvellum?