Missed Mapped Button

[seadooken]

I built my arcade game in 2018 and have not touched the programming since.  My Launchbox skills have faded but could use a bit of advice.  Recently something has changed, when I hit the fire button, the in-game menu pops up.  Attached is a pic of the menu.  I dont know what happened or if there is a simple fix.  Any advice??

[Retro808]

That would be specifically in Mame. Looks like you fire button is somehow mapped to the onscreen display setting. Open Mame.exe and go to the input setting for User Interface. I think it is the first option there. Normally that option is bound to the tilde key ( ` ).  

[seadooken]

THAT WORKED!  You saved me a couple of hours trying to re-gurgetate what I did 5 years ago.  Thank you!