1.Create a shortcut of the DKII.exe file to the desktop.
2.Right-click on the shortcut and select properties.
3. Under the "Shortcut" tab find "target"
4.Change "D:\Program Files\Bullfrog\Dungeon Keeper 2\DKII.exe" (quotes included) to:
"D:\Program Files\Bullfrog\Dungeon Keeper 2\DKII.exe" -32biteverything (just add -32bit everything, leave a space after the end quote).
(I'm assuming D:\Program Files\Bullfrog\Dungeon Keeper 2is the folder that you've installed the game to it's most likely:
C:\Program Files\Bullfrog\Dungeon Keeper 2\DKII.exe)
This solved the same problem for me.
Now I just have to find that patch
[Edited by double_a_ron on 2005-10-30 04:41:47]