Hi there!
First of all, I've already read that someone (Crusader) had this problem before, but unfortunately the thread (http://www.dxalpha.com/forum/viewtopic.php?t=10790) doesn't say how he got rid of it. I recently sent him a PM, but he didn't answer yet and I'm not very patient when I can't play my favourite game any more...
It's about the galaxy audio subsystem. The error message reads as follows:
"General protection fault! History: glxDetectOutput <- UGalaxyAudioSubsystem::Init <- UEngine::InitAudio <- UGameEngine::Init <- XGameEngineExt::Init <- DDeusExGameEngine::Init <- InitEngine"
All I know is that it doesn't have anything to do with DeusEx.ini. I also re-installed the game several times, using different versions, but it won't run. Crusader mentioned that his problem had to do with Engine.u instead...