After my 5th attempt I got it working. I held the slider for a whole minute instead of 30 seconds. It flashed twice & then all of a sudden started. The only thing I can figure is that a book got stuck while downloading & the restart got it moving.
I had tried various things including plugging it into the wall & trying to reset. But the reset wasn't working until I held it for a whole minute????
Thank you for replying

....the sense of panic at the thought of not having my Kindle. Silly since i have a Nook also but I have some good books on my Kindle & have already started quite a collection.