I've installed skype, but i can't seem to exit it. the backbutton doesn't work and advanced task killer doesn't see skype. At the top left corner, i can see skype is still runnin when i use the home button to get back home. how can i quit this app? there is nothing in menu except "add" and "groups" i figured out if you set your status to sign off, that works. but is that the only way?