Vista - Problem with Front Panel of Realtek HD Manager

I am experiencing a problem with Realtek HD Manager Front Panel in Vista Home
Basic.
Back panel has three buttons:
Blue=Line In (Line In)
Green=Front Speakers Out (Speakers)
Pink=MicIn (Microphone)
Then: Front Panel has two buttons;
Green=Headphone (Speakers)
Pink=FrontIn (FrontMic) – This is my problem…
Now the question: How do I change front pink to MicIn Microphone instead of
FrontIn-FrontMic? I tried many times to right click on front panel pink
(Audio device settings), but it keeps going back to the FrontMic tab.
When I plug in the headset to the front, the computer recognizes the green
headset with a popup on the screen. But nothing happens when the pink plug
for the microphone is inserted to the front.