New gmail message received notification wont go away

[GranPaSmurf]

Sprint Galaxy Nexus, NOT rooted.
When I get a gmail message I have a notification on my screen, small banner near the bottom of the page.
It only goes away if I totally shut down phone and restart. recurs when I get a new message.

 

[ratsttam]

Log onto your gmail from a computer. You'll find an unread message in there somewhere.

OR

As far as the "small banner near the bottom of the page", that sounds like maybe a widget or other program maybe isn't updating to reflect the lack of read messages.