hi, I have installed w7 on a Sony Vaio ( VGN-S570P ) which had w.xp on it , every thing is going well except for the screen which is small and won't go full screen (for every thing) , I changed the resolution and updated the display adapter's driver from the device manager but I got no luck, when try to troubleshoot it I get this message: ( video card doesn't support aero effects) , can any body help me in this please ?

my display adapters are ( standard VGA graphics adapter)

thank you