Monitor Resolution/Refresh

I have an old Siemens Nixdorf MCM151V 15" Monitor which is giving me a bit of hassle. When I try to run KDE, GNOME and any other X-Window frontend all I get is a small squashed screen at the top left of my monitor.

I realise this is improper refresh rate, but how do I alter it? On installing Redhat 6 I had problems setting the monitor up. I wouldn't let me set it to SVGA 800X600 at 60Hz, no matter what vertical line number I entered.

I have a ATI Expert98 (Rage Pro) AGP card, which it recognised as a Mach64 (correct setting I believe).

I only have these problems in a X-Windows environment.

Help! Please!


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Rin Xconfigurator with the --expert command line option.  Choose the the mach64 (or is rage pro mach32?) xserver instead of the default SVGA server.  Choose generic monitor.  
Then try some of the other generic monitors.  One of these will work.  

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