i on my comp juz now and found it becoming quite laggy. It wasn't that laggy in the past,Only from juz now. Then i go see my system properties it stated that i have only 256MB of ram. I HAVE 512mb ram installed!!and it has always been at 512!! where my another 256 go and how can i solve this problem??
My comp also siao siao always loses speed then u can only get back the speed when u restart another time,(For eg.u on the comp in the morning it only got 1.16Ghz recognised,then when u restart again it jump back to 1.92ghz)
so i suspect this is also happening to my ram now

(but i restart cannnot get back to my 512.
im pretty sure that my ram stick is not spoilt!!!!
maybe there is a way for me to set back my ram configuration to 512?