taltamir: Now, when you say the campaign works... did it fix the problem like he said it does?
I don't have enough techs available at the point I'm up to in the campaign to confirm that all techs would be visible in the tree, but it has removed the massive gap between lines of text that existed in the version GOG provides, which should mean that the issue is fixed.
In the Options/Load screen (running the game at 1400x1050) I can see 21 save slots without scrolling; in the GOG version I could only see 12 with large gaps in-between.