I bought a new Nexus 7 from Office Max today, when I got it home I charged it and it was all set up with my language, time zone and email account in someone else's name. Is this common? I can't to get to my own Gmail account, It would seem that someone returned this unit to office max and they sold it again without wiping it clean, literally it was covered in finger prints. Do you think I should return it for another tablet?