I was originally going to post this as a problem, but I found a solution. I thought I'd post it anyway as a convenience to other SalixOS 13.1 users having the same problem.
Problem -- I launched Frostwire 4.20 (which is now far from current, but still works just fine). It got stuck at "starting to connect", but never actually connected.
Solution -- You must replace ~/.frostwire4.20/gnutella.net with this newer version of the file >> http://forum.frostwire.com/download/file.php?id=528
Hope this helps someone.

-Dennis in New Orleans