hi guys
i have Solved the problem.
view num ID device in (properties stardard graphic)
on my acer 7720G
PCI\VEN_10DE&DEV_0649&SUBSYS_061C10DE&REV_A1
PCI\VEN_10DE&DEV_0649&SUBSYS_061C10DE
PCI\VEN_10DE&DEV_0649&CC_030000
PCI\VEN_10DE&DEV_0649&CC_0300
(061C10DE is my acer vendor)
and take the string in bold very important
PCI\VEN_10DE&DEV_0649&SUBSYS_061C10DE&REV_A1
go to C:\NVIDIA\DisplayDriver\270.61\Vista 64-bit\International\Display.Driver\
open ListDevices.txt with notepad
find line within DEV_0649
you will see
DEV_0649&SUBSYS_05731558 "NVIDIA GeForce 9600M GT"
add new line with your string like
DEV_0649&SUBSYS_061C10DE "NVIDIA GeForce 9600M GT"
save file ListDevices.txt
scroll up few line you must see name of file may be like "nvac.inf:"
open this file and find with 0649
you will go to
%NVIDIA_DEV.0649.02% = Section005, PCI\VEN_10DE&DEV_0649&SUBSYS_01211025
...................................
%NVIDIA_DEV.0649.20% = Section005, PCI\VEN_10DE&DEV_0649&SUBSYS_013B1025
add new line
%NVIDIA_DEV.0649.21% = Section005, PCI\VEN_10DE&DEV_0649&SUBSYS_061C10DE
repeat for all section to the end
save this file and run setup normal.
during install windows alert it is not right driver , dont worry just click ok
restart and you will see