Hi recently had to re-install NIS2009 on my system, after which it ran ok for 2 weeks and suddenly my system started stuttering, the mouse pointer stutters across the screen, sound stutters and video is impossible. In task manager i notice that the ccsvcHst.exe is using a fluctuating amount of cpu (i.e. from 0 - 98%). I noticed there are many posts about this but all the answers seem different .