please help me.

how to fix blackscreen. this is happen when i install the kexts (ATI4600Controller.kext , ATIRadeonX2000.kext, and so-on) from other forums thread for my (ATI) xfx 4650 for enable full resolution and qe/ci. but when i install it, my monitor goes no signal.

my pci id is (0x9498) or (0x94981002).
and i already add this dev id to these kexts.

My Monitor is acer p166hql (max res: 1366x768).

when i rebuild kext cache , fix permission for /S/L/E . and so-on then i restart to apply changes. but after boot, my lcd goes blank "No Signal".

Others forums suggest to use dvi. why must use dvi ? i dont know how to use dvi. and i dont have dvi cable/adaptor.

i just use VGA Cable. Can it work ?

Thank you. I really need you help.

sorry my english.