Hi

I am new to the raspberry pi2 and the Retropie. I have installed the Retropie image, expanded the memory and all the tasks needed as per many YouTube videos

All is working ok on my Apple Keyboard and PS3 wired controller, I understand that I have to map the controller seperately for the MAME but the Games will not launch when I press the required keyboard key. I managed to get one game (Crash) to launch but the TAB key would not work once I the game to open the MAME configuration menu

Any help would be appreciated

Pupdaz1