You should set the resolution your monitor supports with the apropriate refresh rate
in mine I use 1440x900 @ 75 Hz, there are diferent models, check what yours is
Thanks for your reply, but I need a litte more help than that, as i am an novice in editing plists!
My com.apple.windowsserver.plist contains this code; attached as .rtf
But i dont know what to change? Can you help please!
Wich tool do you mean, the universal installer?
I dont have the option to choose 1440x900 resulution i osx system settings for screen! Does it mean that the resulution isent support by the driver?