No sound on exported MP3s [SOLVED]

I can monitor my sound and listen to it on Audacity but after I have exported to MP3 (or any other format for that matter) the playback has no sound. No matter if I use Media Player or VLC or what ever,

I must be missing something.

I have installed Lame_v3.99.3_for_Windows but still no joy.

In general, look in Windows Control Panels and see where Windows is trying to send your show. That USB thing is the most common.


Perfect. That did it.