You´re right. It´s a "Realtek HD Audio" on a new Intel DB75EN Board (onboard-audio).
And yes, the sound is crippled. It is stuttering, when using the pulldown-menues (is that the right word in English?), in the loading screen, and in the game there are noises but not the game sound.
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It works now. Tested the compatibility-assistant (right-click on the .exe). It recommends to run the demo in Windows XP SP2 mode. A test run (with the assistant in the background) works fine. What I don´t understand: I cancelled the assistant (not using it´s recommendations) and the game runs now fine in normal mode too??? I´ve made no changes in the configuration of the computer so I can´t give a reason or a solution for the problem. It seems to be luck.
Thanks for your help Schrullenhaft.
(I´m from germany and now I also know the meaning of the word "schrullenhaft", haha, crazy word ... even in german language)
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