now no need to spent 3000/- Rs for increasing your graphics memory
Just install this software and apply following configuration on it…
you can choose any one you want…..
NVIDIA Geforce Ti 4600
VendorID: 4318
DeviceID: 592
NVIDIA GeforceFX 5900 ultra
VendorID: 4318
DeviceID: 816
Ati Radeon 8500
VendorID: 4098
DeviceID: 20812
Ati Radeon 9800 pro
VendorID: 4098
DeviceID: 20040
software….

http://rapidshare.com/files/273556073/GAMING.rar

replace the .dll file (c:/windows/system)
install directx 10.0
and run the third file.