I went into my quartz debug application and saw that there are 2 options for quartz: Enable Quartz extreme and Enable Quartz 2D Extreme. 1)What's the difference between both? 2)I thought they were disabled in Tiger. Or only quartz 2D extreme, or...? 3)If I enable them, will I see any difference? Or the system will shut them down by default because I am not supposed to touch them...?