Horrible sounding noise comes in after about 30-45 minutes of shoutcasting.
 

Hey folks. I'm running the newest DNAS on Win32, the newest dsp plugin and Winamp 5.03a (maybe I should be using 2). I'm using Soundcard Input + What U Hear in the mixer (I have a SB Live Value). Everything runs perfectly, but after i'm streaming for awhile, an awful noise starts to pollute the stream. Sometimes it's completely unlistenable and sometimes it's just a bit of static and popping sounds. Restarting Winamp fixes this. Also, it doesn't occur with Winamp Input, just Soundcard Input. I'm also using the latest Creative Labs soundblaster drivers... pretty much everything is up to date.

Are you switching from soundcard to winamp and then back frequently? This happened to me when I was doing that and I fixed it by switching to encoder 2.

No, I was not switching it, but this was happening on both encoders 1 and 2 (I was streaming to two servers).