One other thing that I forgot to mention. Any game with a bright
screen the monitor would dim immediatley. For example- Stargate demo
screen when all of the colors flash, the screen would dim and then
resume. QBert's blue background would dim to near black. And if
running windows the mame32 screen would be unreadable. However, I
don't know if this effect would exist in a standard arcade game since
I was testing on a mame machine with JPac.

,Bill