Hi I have a aliens extermination arcade machine it's a Chinese knock off (has no dongle)but works really well.
But just recently when I turn it on it has been coming up with a referenced memory error and basically you have to turn it off and back on to clear it and can take about 10 times to get it to finally run just about tears ya hair out.
Well I just fluked it and figured out how to by pass it.
If anyone needs that info just email me I wont bore you here.