Reconnecting after Mamewah install - Help!

[Scoobie]

I was running Mame32 just fine on my cab (although it wasn't ideal), but decided to switch to Mamewah.

I have been able to successfully install and configure Mamewah for my cab while testing everything on a computer monitor and using a keyboard.

When it came time to hook it up to the cab, it doesn't work.  Not everything however.

My TV (which I use as my cab monitor) just has a constant diagnol wave running up the screen and I can't see the picture.

It also doesn't recognize my joysticks and arcade buttons, nor does it recognize a keyboard!

When I hook it back up to a computer monitor, it looks great.  I can even hear the sound effects in the background.

So, it doesn't seem to be a Mamewah problem.  

Please help!