Well, I'm not sure. I had two files that were playing and I realized that only the one file was working properly, then I checked the differences and saw that the one that was working was a stereo wav file and the other was not. So I changed the other into a stereo wav and now its working perfectly fine. The drivers could still cause the problem but it does not seam to be in my case. If I find another problem I'll try it out.
BTW, Ran Man, interesting game you made.