For those of you who have to disable video acceleration to make DSOM work, I've made a small patch which forces the game to use hardware emulation only, preventing it from using any hardware-supported features. The result should be exactly the same as disabling hardware acceleration, only the patch won't affect any global settings in your system (so you don't have to restore anything after playing the game).
The patched game dll is in
this archive. Open your DSOM\Bin folder, find the file named xvideoio.dll and make a backup copy of it. Then copy the patched xvideoio.dll from the downloaded archive to DSOM\Bin
I recommend you use the patch only if the game doesn't work properly on your system unless hardware acceleration is disabled completely. Don't use it otherwise.
GreyFuss, thanks for spreading the word.
