I have a saved game in which any time that I attempt to invade a planet, the game immediately crashes to desktop. It does not matter which planet I am invading, which race I am attacking, which transport(s) I am using to invade, or how many turns have passed since loading the saved game. I have tested this extensively, and have found that ANY attempt at invasion (on my part) will ALWAYS result in an immediate CTD. In other games (and earlier in this same game) I have never had this problem, or any similar problem.
My computer:
Pentium D 2.80 GHz
Windows XP Media Center Edition (Service Pack 2)
GeForce 6800 256 MB, ForceWare version 81.98 (up to date)
1 GB RAM
Let me know if there is any additional information that I can provide. I can provide the saved game file if needed, and the "debug.err" file (although I cannot open it).