If this is an old bug, I apologize, but I am going to assume it's new since it is new to me.
I created a new profile for Demigod, and as soon as I did, anytime I clicked the host button to host a game, the game would crash with a fatal exception and all of my graphic settings + username/password got wiped.
I was messing around with profiles to see if I could create a second user name to play with my buddies that are new and not totally trash my "good" username (for the curious)
The bug was resolved by deleteing any new profiles completely and only keeping my original.