You should not have to be root to disable the screensaver. What distro are you using? Turning off the screensaver is avaulable from the user preferences in every distro I have tried.
In Ubuntu, for example, go to system > preferences > screensaver, and you can turn it off or change it or what ever you want.
If you are running all the time as a root user, this is a big no-no and security risk. Always run as a regular user.
Last edited by tommcd; 08-22-2008 at 03:31 AM.