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It doesn't list the Vertical refresh rate, try: Or since you are using the proprietary ATi driver, maybe Catalyst handles this?
Anyway, the above code should return something like:

Vertrefresh 43.0 - 60.0

If it doesn't, then I'm not sure what to do, it's been ages since I last had a box with an ATi card...

Have you checked Catalyst? I'm not sure how ATi configure X..

I am not entirely sure what is wrong, as a practical experiment, have you tried reconfigurering X and using vesa? It might not be an optimal solution, though, as vesa has NO 3D support.
And to be honest, nVidia cards aren't that much better in Linux either, I still prefer Intel chipsets...

s0nicp,

You can try setting the refresh rates manually in the xorg.conf file. Look at the exert from a xorg.conf file below.

Section "Monitor"
Identifier "A70f+"
HorizSync 30 Hz-72 Hz
VertRefresh 50 Hz-150 Hz

Notice that I put a couple ranges in instead of specific values. Do Not specify values that are out of your monitors capability. Doing so will most likely damage your monitor.

You may need to make similar entries in the screen section also. In fact, if it were me I would put a range in the monitor section and experiment with a specific value setting of the VertRefresh in the screen section.

Fred

If you are going to edit xorg.conf, remember to backup the "working" one first: That way you you can easily restore the previous version (just "reverse" the code above)
Also, be very careful by changing the refresh rates, if you go out of range you could fry your panel.

Did you backup? If you didn't, use nano to remove the changes you did: Use ctrl+x to quit, press y then enter to save the changes.

My philosophy is learn while doing, but I heard the for dummies books are pretty good, not sure how good for bash commands though...

s0nicp,

Sorry that didn't work for you. But since it didn't, it pretty well ties the problem to the ati card/driver. I don't know that much about fancy graphics cards, but is there an earlier or later version driver you could try?

By-the-way MagnusB knows a lot more about fancy graphics than I do, so follow his advice and not mine.

Fred

How did you install the ATI driver? Envy? Have you tried removing that, and using the restricted driver manager instead?