I'm on an older blackbook (2 years old? ca. summer 2007) running Leopard and I'm getting some weird behavior with Finder. When I right click on anything in the dock, i.e., to close a program, the dock locks up, I can't click on any of the menu options, Expose stops working and the alt+tab interface stops working, as if everything is frozen... This caused me to think that Finder was crashing, but then I discovered that when I went up to the menubar at the top, everything "unfroze." The dock went back to normal and was usable, expose works fine and the alt-tab interface works fine too. This is completely re-creatable (not a word). I have no idea what's causing it, but it's rather annoying when I try to close programs or empty the trash via the dock. Any ideas?