Hi! And thanks for testing. I had a go at it myself on MorphOS on my PowerMac G4 Sawtooth. It looked rather horrible in fullscreen mode, but looked like it should in windowed mode. Some of the things you are mentioning didn't happen to me, however I didn't try the sound. As didn't have any speakers to plug in for the moment.
I think the problems stem from SDL-1.2 that I did my own compile of, based on this repo: https://github.com/amigaports/libsdl12
But if SDL2 is available for MorphOS, I can easily tweak my compile process to use this instead.Latest binaries can be obtained here:https://www.eevul.net/amiga/ports/milkytracker/[ Edited by Marlon 09.02.2018 - 05:25 ]