Windows 7: problem with geforce go 7400 in 7

Hi
I have sony vaio sz340p with geforce go 7400
the original os installed on my laptop was xp and in xp I had 128 MB graphic (dedicated)and I had no problem in normal games like pes2011
I recently changed my os to 7 and I install all driver related with graphic geforce go 7400 but now I have 64 MB dedicated video graphic and pes2011 doesn't run in my laptop
please guide me what should I do now
thanks

Hello Mahmoodifar & Welcome to Sevenforums.

First of all, try updating your DirectX! Most games are solved just by updating your DirectX.
Check this topic out for a lot of solutions that could slow, drain etc your game.

Tips on Troubleshooting Game Issues

I'd also like you to redirect to this page.

http://social.technet.microsoft.com/...-1140b013088f/

There's a thread same as yours. Same game also. Check it out (EDIT; Sorry, no answeres there):

64 MB GPU Memory Only ?

It could also be that the rest of the memory is 'borrowed' by your RAM.

Best Regards,
FredeGail

thanks
I thought that and ask sony about that and they answered to me : your computer designed for xp and doesn't work other operating system
what kind of answer is this
about " memory is 'borrowed' by your RAM "
I have 3GB RAM how could I add RAM memory to video memory that is what sony did in xp