I am getting 1/4 of a screens worth of the Anaconda and runtime display on F18. It worked alright on F14 and F16. It seems to be to do with the HP DL 140 G3's ATI Rage XL video controller.
 
The main install option gives garbage graphics and the basic graphics install option give 1/4 or less of the display on the screen.
 
I have tried with multiple monitors but get the same results.
 
Has X.org depreciated the ATI Rage XL video driver ?
 
Are there any options on startup and on GRUB that may help me ?
 
There seems to be a similar problem on Ubuntu, here's a solution :-
 
    http://ubuntuforums.org/showthread.php?t=1086996
 
Many thanks in advance,
 
Aaron