How to reproduce this bug:
-On a MacBook Pro Pentium,
- with OS X 10.5.6,
- Sign up for a free trial with Filter Forge
- Wait until the last day of the trial (or simulate this if you have a means of doing so,)
- Launch Filter Forge
- Right-click Filter Forge and select "Keep in Dock."
- Leave Filter Forge open in the background while you do other stuff.
- Try to close Filter Forge. It's impossible!
Workaround: Command-Alt-Escape will close FF. I posted before about Command-Shift-Esc, but that was a mistake on my part. I forgot which shortcut does what.