Hey there,
I was playing Detana Twinbee with midi setup for a couple days, and this morning I can't anymore^^.
When the game boots, it askes if you want :
1.X68000 internal
2.MT32 sound
3.SC55 sound
Since this morning, my Keyboard has no effet at all, and I'm stuck on this screen.
I use a SX68m midi card, and a SC55 Midi synth. All my other games work fine, internal or midi.
Just found the solution : audio from X68000 must be plugged in audio out ; I was using the phones out before.