unsufficient rights

Hi everyone!
I have installed Mageia not that long ago and tonight I thought I would install Chromium ( or Chrome ) as a 2nd browser beside firefox. I clicked on the Applications Launcher Menu ( the start button) then I clicked on Install & Remove Software and a little window opened telling me that I have "Unsufficient rights" to do so. Then I clicked on Tools->Tools Setup->Mageia Control Center and the same little window opened telling me again that I have "Unsufficient rights".
I supposed I could login as "root" and try to fix this but can I just do it from a terminal?
I should add that I might very well have replaced the content of my Home from one from another distro by mistake instead of just replacing My Documents. Any help will be welcome.
I have installed Mageia not that long ago and tonight I thought I would install Chromium ( or Chrome ) as a 2nd browser beside firefox. I clicked on the Applications Launcher Menu ( the start button) then I clicked on Install & Remove Software and a little window opened telling me that I have "Unsufficient rights" to do so. Then I clicked on Tools->Tools Setup->Mageia Control Center and the same little window opened telling me again that I have "Unsufficient rights".
I supposed I could login as "root" and try to fix this but can I just do it from a terminal?
I should add that I might very well have replaced the content of my Home from one from another distro by mistake instead of just replacing My Documents. Any help will be welcome.