I have installed Mameboy on my em500. When I run it I can see my list of roms.

However, only ghosts and goblins actually loads (nothing happens when I select scramble, donkey kong etc)

I cannot seem to get the controls working for ghosts and goblins - pressing the left rolling switch does nothing, pressing button 1 just launches the 'menu' application as normal -
Can anyone help with both/either of these two problems?