I've encountered a strange behavior with 5.5(up to date according to Adobe) running on MacPro 10.6.6. After having the program launched for a period of time (over 30 minutes) all info panels that might pop up indicating an error in an expression, missing footage, a missing font or effect, even basic "about" info for an effect, just stops functioning. Quitting AE and re starting restores this function, but only for a period of time. Its not the end of the world, but it can be frustrating. Anyone else encounter this?