I have made multiple attempts at installing third party screensavers. They install just fine. The problem is that when i go to system and prefrences/ screensavers, i can't find them. I can find them in finder, and click "open with system and preferences", and system and preferences will open, but won't list my screensaver. They are .saver files and are for mac os x, so what am i missing? Any help would be great.