The futuristic satellite is a message you get while trying to initiate combat with another player when not in a PK zone(bug:
https://bugs.quadronyx.org/index.php?do=details&task_id=20&project=1). What happens when you get spammed by it is that you're trying to initiate combat whilst in the PK area and the opponent walks out while the server is still pending combat. a solution to this is to use a sand bomb, or get the opponent to come back into the arena. (protip: don't #disconnect, because you'll die. whenever you're in combat and you disconnect you'll die instantly, so even though your not fighting the server still sees it as you fighting)
a solution to your second problem would be to press the HOME key once, theirs nothing to stop that message, as it's working as intended. you get it spammed because you migt of had your mini-map open, which while you click around it's still similar to that of the auto-walk feature.
as for the first problem, if I'm getting the wrong idea about what you're talking about.. I don't understand why you would get a combat related message for clicking sand bombs or other items.