I've been using my Galaxy tab for about a month now and discovered, quite by accident, that not all of my new gmail messages are appearing in my Inbox, even though they are labelled Inbox. I have to go into All Mail to see them, and often I see there's a new message in a thread, but when I open that thread, I don't see the new message. This isn't happening on my Android smartphone, nor on my PC. Can anyone offer some suggestions? Thx.