No Screens Found after editing xorg.conf

[user10293]

Hi,
I recently edited the xorg.conf file so I could use the extra buttons on my mouse, but now when I try to boot up Mandrake, it says "No Screens Found" and it says something about finding /var/X11/xorg.conf or something similar to that. Is there any way to get it back to normal? I'm new to Linux so it would be nice if you made your explanation as simple as possible.

Thanks

 

[n0cmonkey]

Replace the current configuration with your backup.
Post the exact error (probably in /var/log/xorg.log or something, and prefixed with an EE).

 

[Barnaby W. Füi]

/var/log/Xorg.0.log for me on ubuntu

 

[user10293]

The exact error is:

Data incomplete in file: "etc/X11/xorg.conf"
Undefined InputDevice "Mouse1" referenced by ServerLayout "layout1".
(EE)Problem parsing the config file
(EE)Error parsing the config file
Fatal server error:
no screens found