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DK2 is finicky about a lot of things, but especially mutlicore systems.

However, you can reliably knock DK2 down to use only core to fix most of the problems. This includes a sluggish main screen, movie flickering, and the like. It will not fix every problem, but it's definitely worth a try to improve this undercooked GoG release.

First, grab IMAGECFG. It's a Microsoft utility found all over the place. I picked it up from here: http://www.robpol86.com/index.php/ImageCFG

This site because it has the file itself as well as an awesome explanation on how to use it. You should probably be able to figure this out yourself, but here's the steps I took:

1. Unzip the imagecfg archive to C:\WiNDOWS\SYSTEM32 (or equivilent)
2. Run a admin cmd prompt
3. CD over to the game directory of dk2
4. Run the following commands

imagecfg -u dkii.exe
imagecfg -a 0x1 dkii.exe

exit and you should be good to go.

Edit: I am using a 2 core AMD processor and laptop AMD Vision chipset, Win7 x64, so I am probably the worst possible scenario.
Post edited August 25, 2011 by scharmers
I use a dual core windows XP and your tip really worked well. When in the command prompt I used the following command and it permanently set the affinity to one processor which cleaned up the game play immensely.

imagecfg –a 0x2 "C:\Program Files\GOGcom\Dungeon Keeper 2\DKII.EXE"

There was no more "The very rock yawns with anticipation of your next move" or random scrolling to random parts of the game. Using one processor made the game playable again :)

I tried doing the same thing using the run command, but this did not work for some reason. Your explanation did work however.
Post edited September 11, 2011 by James175
Yay, thanks for posting your tip =D
Finally no more ctrl+alt+del->taskmanager while playing the game... Somehow, it sometimes crashed the game...