I would try a different mouse. I use a wireless rodent and when the batteries get weak the cursor does not move well. I have had mice just go bad for some reason. I use Macs and don't know much about PCs. But it sounds to me like a mouse or other hardware problem. If you are using the touch pad, maybe something is wrong with it. This is a new computer right? Maybe it needs to go back to the store where you bought it.