The mouse cursor starts flickering and my laptop becomes very slow i have to hit F5 couple of time then it comes back to normal. Earlier it was like once every 3-4 hours but now 5-7 times every minute. I tried every thing- scanning for viruses, defragmanting the HDD etc. I even reinstalled Windows but the problems is still there. Pls help guys im not able to use my laptop without refreshing every few seconds.