If you right-click spam Change Portrait at the player setup screen, the game will eventually crash.
Seems to be related to PlayerPictureIndex in user.setting; when it hits negatives it'll crash (Annatar crashed at -1, I crashed at -3). Right clicks reduce it by one, left clicks increase by 1, doesn't seem to crash nomatter how high it gets, though.
Edit: For anyone who gets hit by the crash (and loading Player Setup kept crashing it again for me), manually change the number into the positives in user.setting in C:\Documents and Settings\<username>\Local Settings\Application Data\Ironclad Games\Sins of a Solar Empire\Setting