htaccess and error documents

Hi,

I am trying to say my apache in a .htaccess file which document to open on a 404 error.

I put this in my htaccess:

ErrorDocument 404 /index.php

The Apache seems to read it, but he gives me an error:

The requested URL /dir/file was not found on this server.

Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.

My Apache Version:
Apache/2.0.47 (Win32) PHP/4.3.1

Why don't he open the index.php and gives me this error?

Thx for any help.

Saludo
piz

Ok, thx - i managed it.
I didn't take the root of my server, only the path to the directory where i was working in, relative from the htaccess file.
It seems you can't write relative paths in the htaccess...

Greetz
piz