I can't remember exactly what has been said about crashing due to leaving old governments, but as Foot says you should definitely remove them. If having more than one government for an AI causes crashes, perhaps we'll have to reconsider placing the governments upon conquest. I wish we could destroy buildings by script, instead of just damaging them. I always destroy enemy governments myself, so I haven't seen this problem before.

Glenn, I'm sorry if I have offended you in some way. Could this balloon fix whatever is the matter?