> I have a stand-up mame machine running a KE-72 module with full joy support. I
> was keymapping specific games in mame32 with mame classic frontend. I did
> something during this time period and now when I press the tab key to bring up
> the key mapping function it does not work. I.E. the tab key does nothing when
> pressed. I cannot bring up the keymapping function. I tried resetting keys ect.
> Any ideas???
>

Just to be clear, did you try this?

MAME FAQ H04