While sitting in dock, I got a link to a new channel from another player, and at first I did see it after I clicked it. I only saw it after I undocked and it was sharing the same windowframe as my trusty overview.
I moved it back to the chat windowframe, docked to complete a mission, and undocked to begin a new one. After undocking I noticed the new channel once again wandered off to sit beside my overview.
I ran the two tools in shared cache (permissions fix and object duplication scan) to see if that would fix the problem but no, that new channel seems to really hanging out with the overview.
Maybe they are becoming friends. Maybe they are becoming far more than friends.