Network + Battery + Sound Icon missing from Top Panel in Fedora.

I was frustrated that my Network , Battery , Sound Icon was missed from many days in my Fedora 12 , I had tried many ways to bring it back but I failed . I did tried accessing all the options in system > preferences and system > admin.

I have tried by Right clicking on the Panel , A pop up comes up like Add to panel , There I didn't find anything related to my problem.

But the solution was there only But I had missed one option "Notification Area".

I got the solution : Click on the top panel > add to panel> notification area.

Just try it once !!!