Touchpad cursor stuck on screen

Hi, I purchased a brand new Dell Inspiron 1764 from BestBuy yesterday and everything was looking great. Watching videos in youtube, went to dinner and when I returned, my onscreen cursor that is controlled by the touchpad got stuck on the screen. Tried turning off the computer and restarting it and the cursor stays in the same spot in the middle of the screen. Tried to reinstall the touchpad driver, tried BIOS setting (in fact there is no setting for touchpad...), tried all other things which I can think of but nothing seems to work. Note that all my keys in the keyboard is working, able to operate the laptop but only my touchpad & cursor is the issue.

Has anyone got any ideas as to why this is happening and what I can do to sort it out? Thanks.