I just bought and K40 laser engraver/cutter and for some crazy Chinese reason the dingle key isn't acknowledging its plugged in but it is letting me test some shapes. Sometimes is will not appear to burn lines at all. I have tried to do images and they seem to block out the engrave button. I have only have it for two days buy spent 8 hours both days counting mirror positioning and installing. Anyone that can clue me into some facts about this machine and LazerDRW? I'm from the U.S.and stumped. thanks!