WIFI problems-won't connect a lot of the time-even when "public" connections are available. When it does, browser can't access internet-says i'm not connected. Basically, I just want to read ebooks. Can't buy ebook & DL to device without internet access. Bought book from Amazon-downloaded to my laptop (kindle for PC) & tried to transfer it to tablet, no success (saved to flash drive & used tablet adapter for USB port to transfer to tablet). HELP?