Want to Update iMovie, etc. on MacBook Pro I have updates of iMovie, etc. on my MacBook Pro. But every time I go to update it tells me to sign into one of my email addresses first. I press OK and nothing happens. I sign into the email and there is no mail in there. Where do I sign in? I'm not sure what to do.
One possible explanation is that you have the latest version already. The latest iMovie version is 9.0.9 (1795). It prompts you to sign in to check if there are any newer versions. Since it finds nothing, it updates nothing.