Problem with outlook 2007

Hi,

I’m experiencing a technical issue with outlook 2007.
After setting my outlook to download email from GMAIL, everything worked great for few weeks.
Then, suddenly, without any prior announcement, my (rude) outlook stopped downloading new e-mails.
As if, there is a specific e-mail message that it cannot retrieve. Or the connection gone bad?.

BTW, Sending email, using my outlook is still applicable.

Any suggestions?
(Please advice, no one else found the problem)

M.