MacFixIt reader Silverio recently wrote in with such a problem: I've been experiencing problems to install updates for iMovie through Apple Store. Though in most situations the Mac App Store works fine to download and run a specified installer, there are times when errors occur and even persist regardless of how many times you retry the download. Apple's Mac App Store, which was introduced in OS X 10.6.6, has become Apple's central location for distributing new software as well as managing updates to the OS and purchased applications.
