I cannot update iPhoto
The App Store tells me I have an update for iPhoto, but when I click the "UPDATE" button, I get this pop-up. What account are they referring to?
Running Mountain Lion (10.8.2)
MacBook Pro, OS X Mountain Lion (10.8.2)
When you set up your new Mac with the free iLife apps pre-installed, did you sign into your Mac App Store account and accept the iLife apps into your account? If not, that is your issue. See if you can still accept them into your account on the Purchases pane.