I've spent a good part of the evening trying to get my x-arcade to work in Mamewah.  No luck.  Mostly, shouldn't the left controller (player 1) scroll through the games?  It does nothing.  I have to use the keyboard which is inside the case, and even then, the games are not responsive to the left joystick.
However, when I run Mame32, it works perfectly in games.  (However, still not on the menus before the games. )  I just have to use the keyboard for game selection.
Please help!