Okay, my long wait it over and my Act-Labs gun has arrived. PC games work great. But.... in MAME I can't get any game calibrated! It fires way off screen. I have downloaded in updated to MAME .61 (mame061b.zip) but no luck. Do I need to do anything special to get it calibrated in MAME?
I have read a few posts on "enabling light gun support in mame." How do you physically do this?