Cairnswm:
Just tried to test VerneX...

biggest issue: After playing about 1 minute game quit and I found myself back at the desktop. Sound works now, but the crashes seems to be still there.

second thing: I started the Air(?) mission right next to the workshop.
I found myself in the spaceship flying smoothly. But the enemys (I think they are asteroids as said in the briefing) are soooooooooooo fast, that they move from the right to the left of the screen within approximately 0.1 second.
I had no chance to avoid them or shoot at them. Impossible. Maybe you don't take care of processor speed, don't know. Maybe it's intended to be so fast. But if I would blink my eyes in the "spawn moment" I wouldn't even see them.

Hope this helps to maybe fix some things in the future.

Greetings,
Dirk