ok, I got sound working by reinstallling those vorbis libraries.
Downloading works fine. I downloaded a map earlier with no problem.
Now I'm at the point where I can't seem to get my screen settings right. When I am using 800x600 screen size, it won't fill the screen. It's a little box with a big black border around it. It's true 800x600 on my 1400x900 screen. In Windows, I used 800x600 zoomed to fill my screen. Any suggestions for that?