Don't know what is going on with this thing. After a shut down, it will function properly for a while but eventually it reverts back to this strange behavior. The scroll wheel on the mouse starts changing the zoom level on pages instead of scrolling through content. The left click opens a new tab each time you click on something. The volume control stops working on both the keyboard and the physical buttons on the side of the computer. I am sure there are more issues I have not noticed, but at this point I usually shut it off before going any further. Any thoughts or suggestions?