i've been having intermittent problems with email on my new iphone. i have it synced with gmail and set to display 2 preview lines. the problem is that sometimes it stops showing the preview lines on new messages. further more, if i open and view the message, the inbox will still have a blue dot denoting that it has not been read, even though the mail icon shows no new messages. has anyone seen anything like this? it seems to stop if i restart the phone or play around with the settings, but invariably it comes back. thanks.