When I was a "newbie", I made fun of "smowkee" for using it. He in turn, made fun of me for always being "online". I had no idea.
So, one morning I asked him, Windy and VIF to watch my "online light". I logged out, waited 10 minutes then looged back on. All three confirmed my light was green the whole time.
I then logged out and restarted my CP. Logged back in and the same result. So I started using Invisible mode when I logged off and "disabling" it when I was logged on.
That became a pain in the ass, so I just left it.
Never wanted to bother anyone to test it again.
I really wish I could figure it out so my green light would be on when I'm here and not when I'm....not.