Using a New iMac (OSX 10-9-3). Quicktime player works fine. QuickTime X standard software in this operating system. However, Aftereffects cc2014 says Quicktime not installed so full functionality of program not available. Premiere Pro 2014 and Prelude 2014 also baulk at loading after looking for Quicktime bundles and crash. Seems a common problem showing in 3 programs. Thanks to the Technical experts who can crack this one - driving me insane.