>The package xorg-x11-libs doesnt exist > ># yum list | grep -i xorg-x11-libs No, but some simple digging into what it *could* be might lead you to this: [root at mail ~]# yum list | grep -i x11 | grep -i lib libX11.x86_64 1.0.3-9.el5 installed libX11.i386 1.0.3-9.el5 installed libX11-devel.i386 1.0.3-9.el5 base libX11-devel.x86_64 1.0.3-9.el5 base [root at mail ~]# yum info libX11.x86_64 Loading "fastestmirror" plugin Loading "priorities" plugin Loading mirror speeds from cached hostfile * rpmforge: apt.sw.be * base: centos.arcticnetwork.ca * updates: centos.arcticnetwork.ca * addons: centos.arcticnetwork.ca * extras: centos.arcticnetwork.ca 278 packages excluded due to repository priority protections Installed Packages Name : libX11 Arch : x86_64 Version: 1.0.3 Release: 9.el5 Size : 2.8 M Repo : installed Summary: X.Org X11 libX11 runtime library Description: X.Org X11 libX11 runtime library