No MIDI (I/O MIDI input and output dropdowns are blank)
I have the latest version of MuseScore installed -- v126.96.36.19935. I have it installed on my desktop DAW and just yesterday decided to install it on my laptop. Both machines are running Win7 64-bit with the latest service packs installed.
MuseScore is and has been running great on my desktop. I am still not using it all that often so I just have its MIDI out configured to MS GS Wavetable Synth. It's okay for the sort of sketches I'm doing with the software right now. So I figured I'd do the same with my laptop -- but no such luck. After installing MuseScore 3, I found there was no MIDI output. So I went to Edit>Preferences, clicked on the I/ O tab and found that the MIDI input and MIDI output drop-downs were blank. So I tried clicking on them. Nothing happens. Apparently MuseScore 3 doesn't know my laptop has MS GS Wavetable Synth installed. I immediately checked that it was working with another program I use that makes heavy use of it, and it responded just fine -- and NO I did not have any other programs running concurrently that might have been also trying to use the MS synth. I also tried clicking on the "Restart Audio and MIDI Devices" button. Didn't make any difference. I even rebooted the machine just to make sure there wasn't any junk hung up in memory that might have been causing the problem. No difference.
So, any idea why my I/O dropdowns are blank?