Video card problem

[Harsh naidu]

I am having processor AMD A4-3320M APU with Radeon(tm) HD Graphics 2.00 GHz. I first had windows 7 home basic on my laptop and all games worked. But now I have upgraded to windows 7 ultimate and a single game is not working except of microsoft and that also are working very slow. And the name that is shown in device manager is Standard VGA graphics adapter.

 

[xroe]

You have installed all of the drivers for your hardware, right?