Can you split sound output, eg listen to radio messages on headphones and have others sounds coming from the speakers.
Somewhere I recall reading how it could be done but can't find the post.
Also what is TS address and password for Lockon?
Thanks for any help

Don't know about the sound splitting, but there isn't a single TS channel for Lock on. You join the TS server typically provided by the owner of the server you're flying in. You can usually find the TS info in the joining box of HL or in the mission briefing. They may or may not have a channel available- or- they might use Ventrilo.