I installed mameboy on my Casio E-125. The mameboy seems to launch just fine, and I can view a list of the available games. The problem comes when I select any game off the list and hit the play button... Nothing happens.
Please help, and Thanks!

You must place mameboy executable and roms folder in the exact right spot in your directory structure.

It must be at either:

storage card/mameboy/mameboy.exe
storage card/mameboy/roms/dkongjr.zip

or

program files/mameboy/mameboy.exe
program files/mameboy/roms/dkongjr.zip


As you can see, you have to obtain game roms separately, as they are not included in the distribution.

If you have problems finding them, just e-mail me.