Desktop typing cursor jump

I use a desktop, when I try to sign into my computer, or when I try to type up in my search box or anywhere really this typing cursor jumps (not my mouse cursor). I thought virus and ran my norton and all it came up with was tracking cookies and it completly removed all of those. Anyone have any ideas? Thank you!!

I had this problem on my Dell machine. I solved it by updating the touchpad driver from their Web site.

I use a desktop, when I try to sign into my computer, or when I try to type up in my search box or anywhere really this typing cursor jumps (not my mouse cursor). I thought virus and ran my norton and all it came up with was tracking cookies and it completly removed all of those. Anyone have any ideas? Thank you!!