I'm running 10.6.8, and for example, I would like certain video formats like .mp4 to automatically open with QuickTime instead of a different app that is currently the default. The OS has a feature for this... you right click the file, "Open With", then click "Other". I can choose what app I want to be the new default and check the box "Always Open With". But the catch is that is never saves it. The very next time I double click that newly applied 'open with new default app' file it goes to the old one and I cannot no matter how many times I try actually save my new selection via the official process. Pretty frustrating. And I'm not a big fan of Lion or Mountain Lion... anybody have a solution in Snow Leopard?