It sure seems to me as if my mouse is sort of "jumpy." I am not sure why. I find it unusually bothersome when the cursor and mouse either lag too much or the cursor seems to jump around. I am not sure if it is a problem with the surface I am using, or if I somehow changed the mouse settings. Happy to buy a better mouse. Maybe I can print something and use that under the mouse - suggestions? I am using graph paper right now.