Just thought I'd get back to you about my Tab. After talking to Samsung tech support, they sent me a mailing label to mail the Tab to them. After it arrived at Samsung, they called me. I had to pay $199 to get it looked at. For that much, they said they'd check over everything and even give me a new battery if it needed it. It was out of warranty - or I wouldn't have been charged.
I had thought about not doing the repairs, but getting a new tablet, instead. In looking, it seemed to me that I'd have to pay $500 to get on comparable or better. I found some new tablets just like this for about $200 to $240 on eBay. Although they said they were new, the ones I saw didn't come with a warranty. I ended up deciding to have the repairs done.
The tab it now back home and working great. I really like this tab and hope to get a lot more use from it. I think that Samsung service was good. Just thought I'd let you know how this all works.