I have had cursor issues with my wireless mouse since I bought it. Especially when I try to play videogames with it. I thought maybe it was a USB or processing issue, but I bought a whole new system and the issue persists. I am pretty sure I have the most up to date drivers as well, because Microsoft automatically installed new software for the mouse and updated the drivers. I also checked Device Manager and it says the driver is most up to date. I'm not sure if this mouse just sucks or what?