Vaio freezing and hanging

hi guys many thanks for reading this. i have an older sony vaio laptop. i upgraded to vista with no problem and i thought i would bring it even more up to date and installed win 7. the problems i have is that it momenterilly freezes,or hangs as i put it. if i select a page the progress circle thingy goes around but freezes and then moves and freezes. if for example i try and do anything to quickly it will lock up altogether and if i leave it for ten mins it will correct itself. i end up typing real slow because if i do anything to quickly it freezes and i have to wait till it catches up. i didnt have any of this with vista. is it a driver thing as i had hell of a job to get them all ?? is it a RAM thing ? i only have 1g of ram with 140g HDD. many thanks for reading this post..cheers TG

sony Vaio vgn-fj3m/w (european model)

Make sure you also have a perfect install with no overhead - nothing at all starting with Windows except MSE AV. These same steps for Clean Reinstall - Factory OEM Windows 7 compile everything that works best for Win7.

That and 2gb RAM may make it tolerable but even 2gb RAM with a crappy install can drag. A lot of people still treat Win7 like XP when it is a completely different fully-automated OS.

many thanks for replys some new things i wasnt aware of so i will have a go..special thanks to Gregrocker and gator