ahh right, so it's all normal then,
thanks for explaining the P1 start thing, makes sense now,
got no kids, so it'll be me pressing and holding buttons and joysticks to see what happens

or the cats, one of them used the cab as a daytime nap box, so i expect he'll try to get in it when i have it all working and the back door on.
forgot to mention re: the tab key, the buttons i have for my admin buttons are small momentary switches (the ones used for admin functions in the golden tee cab behind the coin box door) so there's no NC connection as they dont use microswitches,
but yes i did notice the tab key 'sticks' when using the mini-pac input... even if i re-asign it to a different button or physicaly move the wires to anothe button, and it also does it using the keyboard,
i guess i have to get off me arse and connect the CP to the cabs computer, and see what actually happens in mame, as the key display proggy or any of the winpac displays have to fight with windows command keys, i.e. one of the fire buttons is 'left alt' and pressing that button to display it in the winpac proggy makes windows activate the menu's at the top of the window.