Hi all,

I have 3 issues with my N7.  I bought the N7 for my wife and gave it to her for Christmas (2012).
It's been working flawlessly since then.  Overall, I'd say we're pleased and impressed with it, save
the other 2 minor issues below. (seemingly minor to my current issue/problem)

My main issue now, is that it won't power-on...  Up until yesterday, it had been working as it should.
We haven't used it for about a week.  Naturally, the batt. was completely depleted, so, we
plugged it in to charge as we'd always had done in the past.  However, last night, after several
hours of charging, when we opened the cover, it wouldn't power-on.  (as it normally would)

This morning, I removed the N7 from its case, still, no activity after pressing the power button. 
Now, it's just plugged in to an AC outlet and the screen seems to be a rather dark greyish tint.

I'm hoping I can just do a reset or some such simple thing.  But how??

MY OTHER 2 ISSUES:
(hoping & assuming that the main issue is fixed)

(I've tried some things that were suggested by the Google Tech Support Team.  Below is an exerp
from those exchanges with them.):  (edited to fit better in this context)
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I've tried some of the troubleshooting suggestions.  Most of those didn't apply.  The few that did
apply didn't help.  I've been trying, for the last few days, to find  a solution on the 'net, but
nothing I've tried has worked...  (frustration would be putting it mildly)

I've had some successes, but not with my original problem. (Which still is my #1 PC not seeing the
N7 when it's connected to my #1 PC's front USB port.)  What I did was connect my N7 to my #2 PC's front USB port...  Wouldn't you know it, the N7 came up without a hitch!  So, to me this means the N7 is working as it should be.  I should've tried this before now, but my main #1 PC is  easier for me to use...(And much faster )  Are you still able to help me with this?
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I don't think any of that went through to the Google Support Team as I never got a response. (I figure, it's because of the way that I sent the email.  <> )

Does anyone have any ideas about this, though?

THIRDLY...
My main objective to all of this is to create an eBook on my PC.  In doing feasibility research, a while back now, I learned that "the eBook should be a PDF file" and that was all that was needed.  Just copy the PDF file to the N7 and it would magically appear as an eBook.  Really?  Is it really that simple?  (somehow, I highly doubt it.) 

When I connected the N7 to my #2 PC, there were no PDF files on the N7, despite the fact that our N7 has a few eBooks on it. 

So, which folder should my PDF go to, does it matter?  Obviously, my PDF file's extension needs renaming, but to what, though???

I wasn't able to find any specifics in all of my research.  Anyone able to shed any light on this?