Laptop keeps scrolling down on its own?

It keeps going down right. When ever I click my desktop it highlights the icon in the most down right. In browsers it scrolls down on its own but not

It keeps going down right. When ever I click my desktop it highlights the icon in the most down right. In browsers it scrolls down on its own but not instant. My page down , down & end button seems to be fine and unstuck. I tried unplugging the mouse and it still happened. Im using a lenovo z370 laptop. Any idea on what should I do?

or:It keeps going down right. When ever I click my desktop it highlights the icon in the most down right. In browsers it scrolls down on its own but not instant. My page down , down & end button seems to be fine and unstuck. I tried unplugging the mouse and it still happened. Im using a lenovo z370 laptop. Any idea on what should I do?


or:it sounds like it may be clicked onto and at the sametime it scolls down and does it all by its self it might need to be looked at by someone works on them but it might be just stuck

Tags:highlight,down,browser,