lcd refresh out range

LCD Refresh out of range

I have a couple of old LCD monitors (Samsung SyncMaster 170MP and SGI 1600SW). Niether seem to work with Vista - all I get is a black screen. My graphics card is a ATI Radeon X1600Pro. When I boot - the screen refresh goes out of range. My Monitor is set to Default Monitor. I can neither change the refresh rates nor attempt to add a monitor driver.
The monitors work in safe mode (VGA) and when I disable the video card to VGA mode.
How
can I set the Default Monitor refresh rate to 60Hz? Is there another solution?

Windows Vista

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