Just leaving a channel doesn't matter. Also, the system set channels recently added have nothing to do with the /autojoin command. They can be set and unset in the options window (alt-o and poke around a bit).
The /autojoin command takes a "list" of channels as an argument. It copies this list to one of your ini files (no clue if it's the eqclient.ini, or one of the character specific ones). In any case, from that point on, anytime you log on, it will automatically /join those channels.
Just run /autojoin, but pass it a new list of channels that you want. Or, just put a "." in it (as suggested above) to make it an empty list. /autojoin "" might also work. Leaving the channel only removes you from that channel during this play session. Once you log back in, it'll reappear if it's in your autojoin list.
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King Nobby wrote:
More words please