I have a strange issue. I've noticed this on my android phones in the past and now my incredible 2 and its really annnoying. For some reason it does not let me know half the time if I have a new gmail mail in my inbox.
I.use the stock gmail app and I have to go into the all, manually refresh, and then if will alert me of any gmail.
Case in point I had 4 emails sent last night and never got them till I went In and manually refreshed just now.
How can I fix this? It was working fine before and now nothing.