how to lock screen while login as root
I logged in as root. i want to activate screensaver which required password.
Installation version is RHEL 5 server.
I have installed xlockmore-5.28-1.el5.rf.i386.rpm but when i run xlock comand in terminal window, it shows error e.g.
libGL warning: 3D driver claims to not support visual 0x5b
xlock: symbol lookup error: xlock: undefined symbol: DPMSQueryExtension
what to do plz help me.