Do you have any news about that broken volume slider control which has absolutely no effect?
Most MIDIs using tracks with volume levels greater than 60/70% (orange or red VU-meters on vanBasco's Karaoke Player output window) usually suffer from extreme clipping with Arachno SoundFont (what about yours, RichNagel, ex-driver?) which is quite annoying while listening to various MIDIs.
If you're still stuck with that, releasing an update with the overall master volume setting slightly lowered by default, could be a temporary solution.
BTW, this new installer allowing updates by uninstalling the previous version without rebooting is absolutely sweet