Followup on Gmail

Regarding my last Gmail-related post, I think I figured out what happens. Gmail seems to be adaptively changing its update frequency. At night, when I don't get much if any email to that address, it updates once per hour. During the day, when I get lots of email, it checks every few minutes. If it hasn't updated recently, you can give it a kick in the pants by doing Settings link > Accounts Tab > Check Mail Now link (under "Get mail from other accounts"). I had to do this a few times, and Gmail seems to have increased its check frequency at the times of day that I normally receive email.