I had a glitch just now, what happened is a monster attacked me, and while I was in combat, I clicked on the portrait of a monster in the initiative queue to bring up it's details. When I brought up the details, the music changed to outside music (which often happens when I bring up monster details), but also translucently overlayed overtop of the monster details was General Carrodus gloating about his latest technology. Once I clicked out of both windows, I found the combat controls to be unusable (I'd try to move, and instead the unit would sit in position and lose all his movement points).

I've tried to replicate it a few times, but no luck. I suspect the reason is that there is only a small chance that Carrodus will gloat upon completing his research.

Here is my gamefile, in case anyone's interested: http://dl.dropbox.com/u/35106869/AutoSave.EleSav

Just arrogantly run around the giant spider to grab the treasure and hit next turn, and he'll attack you. No guarantees on replicating the problem though.