This is a totally stupid question, but I cant figure it out for the life of me. When I was using vanilla MAME, things fit the screen. Now that I am using GroovyMAME, i believe the original pixel / screen size is being used. Can I use a command line switch on certain games to fill the screen, while keeping the aspect ratio? Or what about if I include a bezel, anyway to stretch to where the bezel hits the outside edge of the screen and fill mame inside?
Thanks!