Jan 22
When using the volume control function keys on an Apple laptop or desktop, there’s a limited amount of control over the volume — each key press moves the volume by one entire unit in the onscreen bezel. However, by pressing Shift and Option along with the volume key you want to use, you can break up each large step in the volume control bezel into four parts, instead of having to use the menu bar item or System Preferences for fine-grained control.
I think this is leopard only, if it isn’t please let me know…