Thanks for your post.
First question I have is which version of the operating system are you using? Also, are you opening from a shortcut/alias or the program executable itself in your Applications folder?
Please keep me updated so I can folow up with you on this.
I had the same kind of problem with Filemaker crashing all the time.
I found that another application I loaded installed Quicktime on the PC. After I uninstalled Quicktime, Filemaker stopped crashing.
Don't know if you have the same problem, but may be worth looking at, you can always re-install Quicktime if this is not the answer.