weird home screen notification
 

hi everyone,

left of the clock and right of the email notification on the home screen, i have a tiny grey circular notification with a diagonal arrow in it and a red dot at the edge of the circle. i've been trying to find out where it was coming from but couldn't figure it out. any help?

app world.
go into app world then my world and check for updates.
update anything needed

then go into MESSAGES icon and delete the message about it.

That's like three or four questions about this very icon this week. *sigh*

thank you, Midnight Draven ^^