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Nothing happens when i hold down the 'back' key which is supposed to open the app tray....is there a setting for this which needs to be turned on? I've looked through all settings and can't seem to find one.....
I saw it in this "multitasking video" [GALAXY Note II] Multitasking - Official Hands-on - YouTube
at min 2:30.
In the video they call it the "multi-windows app tray" and it opens vertically along the right side of screen. Says you just have to press and hold back key but nothing happens on mine. And, i have ATT.