I have the same problem.
Called Tech Support (Used my single 'free' phonecall.)
He advised me to export my 3,500 records to tab-text format,
reconstruct my layouts from scratch in a new database,
then import my tab-text records.
It took me almost a week to create the original file.
Before I took his advise - I tried to open one of the filemaker pro templates provided on the CD with the application - GOT THE SAME ERROR:
"Filemaker Pro has unexpectedly quit."
I guess I now have to pay a fee to call him back and tell him that his advise doesn't work!
I tried trashing the plist as suggested in another reply to your message - didn't help.
Anybody getting a handle on this problem?
Thx
Dan Hopper
iMac 500
384meg RAM
OSX 1.4