When you go to the Save screen, if you don't click on the dialogue box and just start typing you can bring up game windows, try pressing 'n' and you get the currently selected units details screen.

Also had a strange one that I can't replicate where a pioneer was attacked by a Bear so I put the combat on auto, then the pioneer kept running to it's destination which was one of my cities and then the combat dialogue popped up saying the pioneer lost then when I closed the dialogue box the pioneer was gone.

Another thing F3 brings up some debug info, not sure if this is supposed to be accessible.