I recently reformated ym pc because of this problem but after 2 weeks it came again when im playing this game (maplestory) and i alt tab i get like a 1second -3 minutes lag after playing a while this just started happening 1 month but i reformated and ive been playing the game for over 7 months and never had a problem , heres a pic how it looks http://allyoucanupload.webshots.com/v/2005723963688437845
