i've run into the following issue lately, not related to a particular software update (i think): safari locks up while i'm surfing and becomes unresponsive. pressing cmd-alt-esc (but without actually quitting safari) brings it back, so to say┘ I've run into this too. It seems to happen to me when Safari is trying to open another window (e.g., a popup). For example, when printing (:-(, even saving to a PDF. Literally, I have to use a different browser to print anything. Snow Leopoard, but otherwise latest versions of everything. Craig