X11 problem in 2005 Powerbook

[Pietro Pesci Feltri C.]

I have a new 2005 Powerbook with 15" screen, YDL installed, and worked 
fine with a external usb mouse. (No sound :( )
Anaconda configured fine the screen in 1280x864 but I aws triying 
another ugly configurations and lost the original XFree86config file and 
can't return to original resolution. Only gave 1152x768 with screen 
configuration utility.

Can someone to put the original X11 config file in the lis to copy it.

Thanks in advance.

Pietro