The SMART doesnt alert me. By the way, my computer gets laggier every day and now it's not just happening when i copy files, but if something is using CPU, even when i watch movies or play games. It started when (i think) i opened up my PC and there was this box with six switches. They all were off except for one. I pulled that one to off and it started lagging more everyday. All my friends have those switches to OFF, but they dont have problems. Then i tried to try switching ON switches one by another and it didnt work. Perhaps i need same time for my PC to recover as the time in which it damaged, but the worst thing is, i forgot which switch was stocked to ON . TIP: (the box is blue) Once i bought a new C:\ and installed Win 2000 on it. At first it was ok, but then there were same symptomes- For now it's just copying bad, but i fear it's gonna get worse just like my other hard disk. (it lags even when i copy [burn] a CD ) < Win 2000 C:\