maybe this might help:
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If you already have an XF86Config file working with a different driver
(such as the 'nv' or 'vesa' driver), then all you need to do is find
the relevant Device section and replace the line:
Driver "nv"
(or Driver "vesa")
with
Driver "nvidia"
In the Module section, make sure you have:
Load "glx"
You should also remove the following lines:
Load "dri"
Load "GLcore"
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also make sure you have the most current drivers 1.0-3123, older drivers tend to not compile correctly if you are using GCC 3.x
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...no sig for now
