i have tried the 4191, 4180, and 3123 versions all in tarball format. i have also tried the 4191 version with rpm.
The systems are a dual processor P3 500 512MB RAM GF4MX, and a 2GHz Pentium 4 1024MB RAM GF4 (not sure what version in that one). Beyond that I don't know much about the systems, the first is a dell, the second is something else.
What is really bothering me though, is the fact that I get the same error even if I go back to the XF86Config that was installed with the system.