X configuration question

[stan]

I have a fiirly nice (Sun V40) system that has very low resoltuion
graphics. I looked in /etc/X11, and, much to my shock found no xorg.conf
file. I re-ran dpk-configure xserver-xorg, but there is still not one, and
the graphicstill are low res. This is on LTS (10.04). 

This is a rack mount machine and I don't work on it locally all that much,
but I am going to need to do so more in the future.

What can I do to resolve this?

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