My 10.5.7 took a bit longer than normal to boot to login screen this morning. After I logged in I find all the menu's for the applications (TIme Machine, Airport, Power etc) are all greyed out. Display's isn't but clicking any items doesn't do anything. I can control everything via control panel, it's just the 'system tray' style icon menu's that are b0rked. Clearly I need to reset some corrupt pref somewhere. Anywhere know where?