FC5 安装XGL 求救

我是新手，安装aaccdd做的那个包后，开机出现fail to start x server
现在我只能在文本界面下startx进入

我想问一下在安装时那个# yum --enablerepo=fedora-xgl install compiz xorg-x11-server-Xgl 能不能跳过
我上不了外国网，或者有什么办法可以用代理上

我sh xgl-settings后看见有下面几个问题

Initialize uninstall process ? [y/n]
y
error: package compiz is not installed
error: package quinnsrc-compiz is not installed
error: package xgl is not installed
error: package xorg-x11-server-Xgl is not installed


Error: Missing Dependency: libavformat.so.50 is needed by package quinnsrc-compiz
Error: Missing Dependency: libavcodec.so.51 is needed by package quinnsrc-compiz
Error: Missing Dependency: libavutil.so.49 is needed by package quinnsrc-compiz

libavformat.so.50、libavcodec.so.51、libavutil.so.49 这几个东西要在哪里下