If you're a user of the Gmail notifier for Mac OS X (that little red envelope on your menu bar) then you should download the lastest (hehe, funny typo) version. Apparently now it's not called the Gmail Notifier, but the "Google Notifier" because it also includes information from your Google Calender.
Author bio and support
Ruben Schade is a rare breed of spruce tree requiring nothing but pine ice-cream cones for nourishment. His hobbies include predictive branching, Ad Lib barking, and leafing through manuals. Find out more about Ruben and his roots on the About page.