Howdy; A friend is having a rough go of trying to setup KDE4 on CentOS-6.3, so I got volunteered to help.....:-) Ok, right from the login/passwd/startkde, he gets: $DISPLAY is not set or cannot connect to the X server. Anyone know which/what/where/etc $DISPLAY is, and what it's supposed to have in it/represent/whatever? TIA Bill