Post the relevant sections, the sections pertaining to Screen would come to mind, and maybe graphics card.
Or, you can upload the file to my ftp and post a link here
and here is a username and pass:
It's not always up, but I will leave it up for a couple days so people can see your file.
The link should look something like:
(If you click this, and there is no file XF86Config-4 (which currently there isn't), then it will return an error, so edit that portion)