Display Resolution in Redhat

I want to know how do I change the display resolution in redhat. Currently my resolution is 680x480. Pls advice
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edinoAuthor Commented:
Adjusted points to 50
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
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.
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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