iPhoto 9.4.2 upgrade error on Mac mini 5,1 running Mtn. Lion. Can't complete installation.
Have Macmini5,1 (2011) and iPhoto 9.2.2 using Mtn Lion 10.8.2. After 10.8.2 purchase and installation, iMovie and iPhoto updates were identified in the Mac App Store for installation. iMovie update went fine, iPhoto 9.4.2 got to 99% and then got an installation error. Went to 'Purchases' pull-down and re-tried update but same error. Not sure what next step should be.
Mac mini (Mid 2011), OS X Mountain Lion (10.8.2)