I've noticed that I have problems with insync and dropbox icons showing up in my system tray and in investigating the problem it seems to be because they are being started before I even login.
In investigation I tried a fresh reboot and login to the command line. When I did a ps -ef | grep I noticed that all of my session processes were being started before I even logged into the GUI. This includes KDE, insync, dropbox, etc. When I traced the PPID's of these processes it goes back to my entire KDE session being started by init (PID 1!)
The problems with insync, dropbox, etc. are solved if I kill all of these processes before I login.
Does anyone know what initscript or upstart job could be starting my user session before I've even logged in? (I'm on kubuntu 10.14)