Ever since i updated to lion, I am getting an update for angry birds even though I don't have it on my system and never bought it. It updates my app just fine though, just not this one. I get this error, that is not my email address.
I have exactly the same problem, however it was happening while I was still on Snow Leopard and still appears even after updating to Lion.
Any help would be great. Thanks
It is a sign that you got some apps purchased not throught the app store
and under a different account- it might as well having some pirated apps installed would be showing as Angry Birds even if Angry birds is not installed.
Then the app store would ask to sign in with a never seen before email address etc. There is documentation of this problem in the internet. http://forums.cnet.com/7723-6126_102-531337.html
Just ditch your pirated copy of FCP X in the trash and the problem will be solved apparently.