I suggest to try both lol and center too,regarding hold and press position on 7xx I had doubts too about it and made a web search yesterday night . Result: in some forums thread I've read "center" of the screen in some "right" in some "left" in some just hold power button, so I thought as voyager56 seems to be a 765 owner, better to leave his instructions like they are written in his post.

May be does it depend on different 7xx models?

references:
Right
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Just HOLD ON button

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or
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Left
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Left+Right
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No matter where
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Etc Etc