Hey JavaJack,
No problem, glad to fix them, anything you find I'll add to the next release for sure. The input bug you had reported should be fixed as well (the overly repeating keystrokes).
As for running more than once, depending on the program, I noticed it will return to a prompt on the vic-20, it usually depends on what the program does. I will look into this and report back with a more definitive answer.