Can you help? I have a brand new nexus 7 which keeps giving several error messages relating to Google play store. I get a "cannot process payment" error when I try to buy any content. (Apps or books.) Also when I try to download free samples of books the play book app cannot open them. I have tried deleting the cache and data of both play store and play book apps, this didn't solve the problem. I then tried removing my google account from the tablet and starting again. Again this did not help. I a!m totally new to android. Does anyone have any advice for me on these issues?