Thanks for the info regarding the pink background to the number 11, there are several DX's which have the same. I'll have to go through them to find them now.
I was receiving an alarm code 40, on inserting coins. Mine was resolved by changing the display port under the configuration tab to meters from displays.
That's the trick! It's a really old layout, worked at the time, that's why I am re-doing them as I kept the resources.