X troubles w/ MacMini (need sample config)

Hi,

before my mini's harddisk died, I successfully ran X on it.

Now, setup again, unfortunately I know I played around a
while with the config but I can's get it up again :-(

This time, it should run with a DELL 2407WFP 
1920x1200 DVI.

Monitor reports "Signal out of range" :-(((

Mac OSX can run this.

Can someone please send me *ANY* working XF86Config, even
for
another resolution, please?

Oh, running 3.99.21

Thanks
Flo