Alright, I've installed VS .NET and tried to get it to compile. Had to use some #ifdef for some changes in order to keep compatibility between both compilers. The odd thing is that if I compile it in .NET with sound it doesn't work, just as you said. It still works in VC 6.0 though. Everything else works just fine though, so there seams to be some problem with the audio code yes. How come the .exe that works for me and many more doesn't work at all for some other people I don't know ... I'll try to haunt it down though, but I have some other things to do too, so I'll see if I can get the time. In the process of ensuring compatilibity I found that I have broken my render-to-texture code at some point in time, cause it doesn't seam to work properly in any demo while the old .exe's still work, the same result for both .NET and 6.0 too. 
