[Tuidjy]

My girlfriend finally got her own copy of
Dominions II, mostly so that she could play
multiplayer. The problem is that the new
key in her manual seems to get rejected by
the old installation. She has a bunch of
mods and maps, and she would rather avoid
reinstalling.

What could be causing the rejection?
Does she have to stay out of games that I am
also playing if she keeps the old key? (mine)
Which files should be kept if she has to reinstall?