When I have this bug I cannot reproduce it by loading the autosave from the turn before and do the same battle, I am sorry derek
.. Meaby I should link my computer to some big bug reporting machine so you can get all the information on each bug directly? 
I don't have the problem very often though, my machine is "pretty highend" in my computer experience anyways, so might be directly tied to having low memory, or a smaller cpu.
Sincerely
~ Kongdej