Hi, my name is Vishalnand I am using HP pavilion dv6000 notebook which has 4 gb ram, Nvidia GeForce 8400m GS graphic card of 2gb and showing total available graphics memory 2175 MB but why it shows dedicated video memory 128 mb. I can't play any graphics games smoothly. Can I increase this upto 1024 mb or at least 512mb. Please help.