Got my Kindle for Christmas... love it. I never thought I would give up my books, but I'm converted. Having a problem now though.... my Kindle won't sync to the last page read. I made sure I was on Wirelesswhen I made the request on the Menu

... nothing.... says that it will sync after it has gone to sleep, but that isn't working either. I've read about 80% of a large novel, and it's stuck on 2%. Any suggestions?
Betsy T.