After playing for some hours straight, decided to check the Quest tab in the Kingdom report because I hadn't checked it yet and I had read about a crash in it.
I had done a Noble quest, a peasant screwed the Fountain one, and I had one pending (some caves, I think).
Turn 173, Current Memory Usage: 1599578 KB and lots of armies running wild (but dressed).
Saved the game and checked the tab, getting a freezed screen with the pop up of closing the game or searching for help. No .zip generated so just debug.err
http://dl.dropbox.com/u/4996295/Quest_Window_Crash/debug.err
http://dl.dropbox.com/u/4996295/DxDiag.txt