Im just asking for a friend, he is triyng to run 15khz games on a 25khz only monitor with a pi4, obviusly the pi cant output 25khz so it gets a triple screen. I wonder, i know groovymame can output med res games, but the question here is, can groovymame run 15khz games on a 25khz only monitor? you know like convert the resolution on the spot? is that posible? thanks for your help.