When I insert the Lightroom 4 disc into my Mac I get this message: "Operation could not be completed. (com.apple.installer.pagecontroller error -1), Couldn't open "Adobe Photoshop Lightroom 4.pkg"
Does anyone know how I can get past this and get my upgrade installed?
Many thanks for help with this problem.
May i know the version of MAC you have? Is it 10.5.X or 10.6.x?
Check the system requirements for LR 4 :