Thank you for your post.
Does the crashing occur while using a specific layout, or does it occur with all layouts?
The next time it crashes, please post the header of the crash report as well as the crashed thread. This will provide information why FileMaker is crashing.
It happens on many layouts. I will copy the next crash report. It's behaving better today, but I can't say that anything is different on my computer as far as what software I am using.