xorg.conf problem
 

I newly installed Redhat Linux enterprise 5.1 in my new Hp DXPro3005. In installation time display is working fine. Ater completing of installation i m getting upto grub after selecting my operating system, It is booting in text mode it is working fine. But it is not comming to GUI mode. Please sugission how can it get Gui mode.

You've installed an OLD version of RHEL, so my first suggestion would be to install the latest version. Second, since you're using RedHat ENTERPRISE, you're paying for support...give them a call for help. After that, you need to configure your X parameters. There are many docs on Google that tell you how to do this for RHEL, and lots on the RHEL knowledgebase.

If you're NOT paying for support, do not use RedHat Enterprise, but load a community supported version, like CentOS, Ubuntu, etc.

Check you initab setting. If you installed in text mode, the default value would have been set to 3 (text mode) instead of 5 (GUI mode). (Assuming RHEL is similar to Fedora, which I use.)