FWIW, I, too had a very hard crash, where the Mac had to be rebooted from scratch. Also, I'm using the trial version-- hoping to purchase if it works OK on Mac.

Rebooting does not help at all. Reinstalling the trial seems to fix the problem.

Am I correct in thinking MOI runs in a Wine instance? Seems like it should be pretty slow-- much slower than PC. Is this the case? Have to admit, it is a sweet package, very easy to learn and powerful to boot!