Corp.Klinger

When I move the view around the map the movement is not smooth. It is more of a choppy movement like it is trying to remap the screen. I tried the rage3d tweak to turn masking off, but did not help. Is this the normal? What can I do to get smooth movement moving around the battlefield? Thanks computer specs: Me edition, 1.8Ghz, 512Mb Ram, Radeon 9000 series video card,