Crashing all the time...

Great app, and has been really fun for my daughter to use while learning to spell. However, after not having used it in some time, we just started using it again. It now crashes all the time. I deleted and reinstalled it, but it only works for a few minutes before crashing. Is this a Mountain Lion issue?

herod2221 about Montessori Crosswords - Teach and Learn Spelling with Fun Puzzles for Children