Whenever I click the Kingdom-button, the game crashes to desktop without generating a debug.err or crashdump. The only thing I can provide is my dxdiag...
The crash occurs regardless of having built a city or not (this was all in singleplayer).
http://pastebin.com/6djTMTHD
EDIT: some more info: I started a new game to check for "reproducability", and this is what I did:
Turn 1: Walked one tile, kingdom button was working.
Turn 2: Walked a couple of more tiles, kingdom button was working.
Turn 3: Stepped on a goodie hut, picked up a dexterity book, used it. Kingdom button now made the game crash.
EDIT 2: And some more: I now ran around for a bit, built a city and some improvements (~25 turns), and when I clicked the kingdom button this time, it worked. But after that, when I clicked the research tab it crashed. This time there was a crash dump, though! Here it is: http://dl.dropbox.com/u/8011677/Elemental0_802-2010-06-11T22-48-10-140.zip