Hi I installed PiMAME on my RPi and I'm playing Centuri Phoenix on MAME4All. The Idea came from my uncle who has an old Centuri Phoenix Cocktail Machine. Now i want to build something like such a machine, but I've got some problems concerning PiMAME. I'm totally new to PiMAME, AdvMAME, MAME4All and this stuff. So the problem: When you play 2 players on the original Centuri Phoenix Cocktail Machine, the screen flips vertically for every turn, my hardware-setup doesn't. I think it's because the ROM doesn't support Cocktail mode. So i read through some blogs and forums and realized that if I press "/" the screen should flip...It doesn't :/ I can play normal with my mac keyboard, but screen flip "/" and speed mode "*" don't work. Other things like options "TAB" or output options "~" work perfectly. Anybody who could help me? Thanks a lot.