I guess I can say the problem has been resolved.
Not the only the All CPU Meter is displaying wrong CPU speed. Windows 7 view basic information about my computer is also wrong.
At any rate, I have to disabled "Cool 'n' Quiet" feature in BIOS setting to get the Windows 7 and All CPU Meter showing a correct speed.
However right now I am running my Phenom II X6 1090T @3916MHz, so C 'n' Q is outweighed All CPU Meter - I decided to get "C 'n' Q" back on for now.
I am just using other gadgets to monitor my CPU speed.