I'm running Mac OS X 10.6.8 After downloading the upgrade from 3 to 4 I now can not open the application. The message that pops up when I try says that this app is not supported on this type of Mac. Anyone had this happed and if so how did you fix it?
Are you certain you computer meet the minimum system requirement as per :- http://www.adobe.com/uk/products/photoshop-lightroom/tech-specs.html
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