Display Resolution in Redhat

I want to know how do I change the display resolution in redhat. Currently my resolution is 680x480. Pls advice
edinoAsked:
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marko020397Commented:
Login as root or use su to switch to root and run the program
Xconfigurator.
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edinoAuthor Commented:
Adjusted points to 50
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edinoAuthor Commented:
I found this command xconf :

But it will ask to configure the whole things; mouse, keyboard, & display

Now my Xwindows cannot run anymore.
Pls advice
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marko020397Commented:
You don't have to run XWindows to run Xconfigurator. Xconfigurator runs in text mode.

If you have switched to runlevel 5 where XWindows start automatically try to press Alt-Ctrl-F2. You have 6 screens (Alt-Ctrl-F1 to Alt-Ctrl-F6) where you can login and type in commands. So run Xconfigurator in text mode and restart your computer.
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kumarptCommented:
If you had given the choice of resolutions you will need while running Xconfigurator, changing resolution is just a few key strokes away.
     Press CtrlAlt+ for increasing and CtrlAlt- for decreasing resolution. Happy computing.
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