Hey,
i'm having a Toshiba laptop with an intel chipset, same as yours.
i have a 1.66 GHZ processor and 1024 MB Ram, But when i try to run CSS (it passes system requirments) it works but i have a framerate of 2-3 ?!
everything is set to low though recomended says most things should be on high. i used the parameters you told me but it didnt make a difference. menu has 250 FPS but from the moment game starts it drops to 1 and then raises to max 3.
My Laptop meets requirments, so i dont know what could be wrong. HL2 works but also choppy in SP.