Apple Knowledge Base article 106465 states: "Under certain conditions, the applications in the Dock appear with folder icons and cannot be opened. This most likely occurs after reinstalling Mac OS X ...
Apple's new OS for the App Store era borrows iPad usability tweaks while delivering key new features for businesses and professionals If Apple didn’t have a decade-long practice of naming its Mac OS X ...
Where to begin? Mac OS X Lion adds, deletes, and changes so many aspects of Mac OS X that some problems are inevitable. Actually, so many issues have already emerged that I can’t begin to cover them ...