I have the update system telling me on my MacBook Pro that Iphoto needs an upadte even though in the panel it shows it as installed and will not re-install the update. How do I get rid of this annoying reminder?
If it's any consolation I've had this happen on one of my machines. It went away after a day or two. If that's not enough for you then contact App Store support. It an App Store issue really, not an iPhoto one.