I wonder if you need to set file associations for some file types on the new MBP? some of the defaults are probably different than on you trusty iMac. You can check each file by hitting command-I in Finder with the file highlighted.

I wonder if you need to set file associations for some file types on the new MBP? some of the defaults are probably different than on you trusty iMac. You can check each file by hitting command-I in Finder with the file highlighted. Here is an explanation: http://osxdaily.com/2013/08/08/change-default-application-open-files-mac-os-x/ Each file type has a default application that is associated with it. This means that when you double-click a file from the Finder it will open a specific application, for example on a fresh Mac OS X installation, all image files (png, jpg, gif, pdf, etc) will default to opening in Preview, and all text documents (txt, rtf, etc) will open in TextEdit. Over time, the default applications and file associations can change as you install more applications, which sometimes set themselves as the new default app to open a file format with.