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When I use the Fn key with  --> & <--  keys to decrease & increase the vol respectively, a graphic indicator used to be displayed  on the screen but not any more, although vol is getting adjusted as expected & the vertical vol bar in the taskbar loudspeaker icon is rising & falling as expected.


What is the most likely cause for a disabled the graphic display indicator, and how do I get it back?




The hotkeys and onscreen brightness, volume, etc are contained within the Power Management driver set.


Here is the Power Manager for Windows 7


Here is the Power Manager for Windows XP


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