Hello all. I'm thinking about upgrading my cpu (currently a Athlon 64 3200 "2ghz"). Reason being while simultaneously writing cd's and extracting archives while surfing the net etc etc i am experience a fair bit of lag. This is understandable all things considered. Thing being that i'm often finding that the cpu is registering only say 30% usage and still the computer seems to struggle when for instance minimizing/ maximizing windows (rams not an issue) . Is this natural and could it be remedied by an upgrade? Any thoughts appreciated. Maybe a better question would be why is my computer struggling all round when registering a quarter cpu usage and a quarter ram usage?