I just downloaded MaLa & have been pleased with it's use as a Front End over MAME32. I got it all configured to match what I wanted; it recognizes my controller's buttons within the Options menu and I am able to scroll through & select games using the buttons I mapped.
HOWEVER, once a game actually starts, none of my controller buttons are recognized. If I hit Tab to open the menu & go in to the controls, none of my button presses are registered. If I switch over to MAME32, my same controller works great.
Is there something I need to do to get MaLa to recognize & use my controller once the games start? I am using a GPWiz to connect my controller to my PC via USB.