Missions will not restart after failing them, (well, technically they do) I get the cut scene describing the mission and irrespective of whether I let the scene run or use Esc to cut it short the game restarts with a graphical block and nothing else. I can fire, be killed, move around I think, but cannot see anything.
Anyone got any ideas?
Starting the mission from the front screen works though.

Don't bother. I've been seeing the same issue for years now. Tried various system setups, to no avail. Made lots of reinstalls with my retail version of IGI 2, applied all patches available but none of all this will help. Until patch 1.2 the game was widely unplayable on recent systems. However that 1.2 patch also seems to introduce that restart freeze bug. Unfortunately this issue has not been resolved with patch 1.3. I guess we're not going to see a fully working version of IGI 2 anytime soon. The game may be deeply flawed but it was still fun sometimes :(

Reloading saved games (not available on difficulty level 'David Jones') seems to work, but that will also keep you from reaching the highest rank 'David Jones' in each level... The loading screen of my (unaltered) GOG version shows '1.3'. Still 1.3 will not bring any improvement on that issue.

I bought it on GOG in the promise of a better tomorrow, a working copy of IGI 2 ;'(

I have the same problem, would be really nice to get a fix for this.

I'm having this exact same issue as well. Any update to this?

I found that pressing M to go into the map and then pressing it again to go out of map clears the glitch. Annoying but works and is fast too.