I am new to mupen64. I use a ppc apple ibook, which I am also new to. I tried sixtyforce, but after 2 hours of playing, and saving my game only to find out, you have to pay to be able to even do a basic save, I gave up on it, and tried mupen64, which seems to work great, but I can not seem to find a way to redefine the inputs. I do not have any external controllers, or mice, and the default keys are difficult. Is there a README I am missing, or something, that explains what I need to do to redefine the input keys?