[CentOS] CentOS Boot-Up Progress Bar Show Details Menu is Not Working

[Balaji]

Dear All,

    I have Installed CentOS 4.4 Linux and Linux Boot-Up Progress bar 
"Show Details" Menu
    when i enable the Menu it shows the start-up services details.
    Then i have done some changes in Linux but i am forgotten the changes.
    After some changes the Linux Boot-Up Progress bar "Show Details" Menu
    when i enable the Menu it will not shows the start-up services details.

    I tried to google-out the problem in vain
    Any clues as to whats the problem and the remedy?

Regards
-S.Balaji