I'm with MiRai, this sounds exactly like an infinite loop in your key binding, from changing something manually. You can probably do a File, Clear, run the wizard again, not make any changes, Export and launch, and it will probably work fine. If you don't make any changes until AFTER you test it out, then it's easier to know when you broke it

Last resort, here's how to share your ISBoxer configuration http://isboxer.com/forum/viewtopic.php?f=2&t=13