OH Btw i found out what kext it was. it was the ati radeon 2000 that was doing it. of all things. lol i found another post on the subject so i removed just that and problem resolved

i have same card as yours and i get same problem as yours ,
how did u manage it to work?
i think i removed ATIRadeonX2000,Kext and then i dont get PK but also stuck in apple logo , only one thing works is to use save mode
any suggest mates

Hi,

it only works with dvi and 75 Hz with LegacyATI4800Controller.kext in L / S / E and
the chameleon v1650 . do not forget to delete ATI4600Controller.kext.

trick to boot in -x "Graphics Mode"="1024x768x32" GraphicsEnabler=Yes, then move the
resolution 75 hz

and reboot in normal mode, still with GE.