I never thought this could happen! I was ready to quit for the day (11:30 pm 2/18/13) and started my final sync for the day. I clicked on "continue" after the summary log came up (with about 6 changes from my computer only), and FTM crashed. As usual, I clicked on my tree shortcut so I could compact the file to get it ready for tomorrow, and the file wasn't found! It's actually been deleted from my local hard drive! My online tree is fine (except for those last 6 changes), and I have an auto backup just before those changes (whew!), but wanted to check to see if anyone else had the same thing happen. Or if anyone has any [helpful] suggestions. I'll be calling the help desk tomorrow!