Windows don't recognizing exact dedicated memory

Hi

I have a Macbook Pro 13" late 2011 , and installed windows 7 ultimate through bootcamp 4. I downloaded windows support deriver through bootcamp and installed all drivers, and all works great.

But dedicated video memory recognized as 64 MB insteed of 328 MB !!

I can't run any game !!

This is my Video Adapter Information:

Intel(R) HD Graphics 3000

Total Available Graphics Memory: 916 MB

Dedicated Video Memory: 64 MB

System Video Memory: 0 MB

Shared System Memory: 825

I tested various ways:

Uninstalled driver, and update driver

Uninstalled driver, then I downloaded last driver from Intel.com, and installed

Yet the problem not solved !

please help me.

thx