hi milanca thank for ur response....as u said ""Remove the kext you already tried with, like nvinject etc.. Try with this ATY_init by netkas.

http://www.mediafire.com/?jtzgzlumlnv

regards ""

i followed what u said....i removed previous kext NVDarwin....then i installed ATY_Init.kext also gave the permission at terminal

sudo -s
password:
sudo chmod -R 755 /System/Library/Extensions/ATY_Init.kext
sudo chown -R root:wheel /System/Library/Extensions/ATY_Init.kext
sudo rm /System/Library/Extensions.mkext
exit
reboot
then my display same with jus only 1024x768 resolution

http://img18.imageshack.us/i/aftratyinitkext.jpg/

is there anything else do i need to edit at info.plist or any other thing i have to follow...thank u..