General Home Bar - strip at bottom of screen

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http://androidforums.com – Hi, I wonder if any one can clear something up for me on the tab 2 - 7 and 10.1 the bit on the screen where the home icon is bar across bottom of the screen when playing movies - It appears that although the icons go the bar strip does not - is this correct or have i done something wrong I dont yet have the tablet - as this puts me off want to clear this up first because on a 10.1 note i saw today it did fully go and the movie used that part of the screen as well if this is a specific to the tab 2 7 and 10.1 is this the same for the 7.7 any help appreciated Thank (General)