I've always used the keyring menubar icon to "lock screen" when I left my computer at the office. With Leopard, that would launch my screensaver (an RSS feed usually) But with Snow Leopard, the screen just goes black, without screensaver. I don't know what to do to use "lock screen" to lock my screen with the screensaver being active? I don't mind the screen going black whenever "time is up" according to energy saving settings though. Ideas?