Issue: If a default printer is changed after the Installation of FileMaker Pro, this change may not be reflected in FileMaker’s settings. Solution: Delete the Default printer key in the registry. Method: 1 – Close FileMaker, 2 – Access Registry...
Important!
Make sure you backup your data and system before carrying out any steps noted here!
These steps have worked for me, but I cannot guarentee they will work for you!