How do I start skype in the system tray?

I have skype version 4 is set as one of my startup programs. Whenever skype starts, it pops up in it's full window mode. I would preferably like it to start as just an icon in the system tray.


In Settings - General check the box that is labeled "Start Skype minimized in the system tray." That should get it to open minimized. (It does in gnome 3 at least)