Updates on the App Store

[Catastrophe.]

I bought Angry Birds off the app store and it keeps telling me I need to update it even though I've updated it to 1.5.1 about 4 times *)

It's really annoying me. I know it's not a huge deal but I always like to keep my apps up to date and I keep thinking I have an actual update.

I just downloaded and installed the update AGAIN but it's still saying it's out or date -_____-

-is confused-

 

[Shawnpk]

I have the same problem except with Twitter.