I have setup the latest GroovyArcade using the generic Arcade 15Khz monitor setting. All works well, I see the splash screen and the list of games loads and displays correctly.
If I try and launch a game, have tried Robby Roto and World Rally so far, the screen goes black and I can hear my monitor (Polo2) whining like it does when it is recieveing a resolution it doesn't like.
Where am I going wrong? Do I need to setup the emulators themselves to be 15khz?