I have had a number of occasions where FMS had crashed for the same reason. I tried to open a supoprt ticket with FMI and I was told that I needed to post my situaiton on the public support board. It took a few months to get the crashes to stop and so far as I can tell FMI is still not sure what the problem was other than somehting to do with thumbnail generation on the layout.
What advantages are there to the paid yearly tech support contract? Is the support better or faster?