Title says it all, OS9 addresses its an Arduino micro, but can't recognize the interrupts from the code injected into the microcomputer, and thus reads it as not having a valid driver, despite being USB HID compliant, as evedince as working in OS X 10.4 with no extra software. Is there a driver or extension that makes it function as a USB mouse, or will I have to do a hard mod with my mac mouse to put a generic USB mouse board in there... which I have tried to do before and broke several a boards to make it happen.