Quick Time used to work fine, but now when I click on Watch Trailer in Apple Trailers, the link opens ok, but when Quick Time opens, it gives an error that says "A necessary data reference could not be resolved". When I click on Ok, the window closes. Any ideas what to do? I did recently upgrade my hdd and used Time Machine to restore my data/programs. Mid-2009 MBP, 10.6.4, QT (v10.0 114).