Turn the game off. Remove all but one display connectors. Switch on and run the display test.
Then switch off, disconnect that single display, and reconnect another. Switch on and test.
I have seen strange display issues due to one display causing all of them to display incorrect readouts. Try to isolate the display. If this test fails to find a faulty display, you are looking at a problem with the MPU.
Yepp.. could be one display affecting the others, i didnt think to mention that in my post at the time
but hey it WAS after midnight when i posted my reply
