You could try disabling the mouse pad, rebooting and see with an external mouse if it takes care of it.
Hoping that someone can help me with this -- for the past month or so my Dell laptop has had a problem with uncontrollable scrolling up and to the left. This is now getting worse and happens in all programs including Word, Adobe, all internet browsers, etc. Even to type this message is difficult because the cursor periodically jumps back to the top left corner of this text box. I have tried attaching a new external mouse but this does not help. The problem occurs even when not using the touchpad. I have scanned my computer with multiple anti-virus programs but no luck. It is getting difficult to use the computer for anything. Even holding the down / right arrows does not help. PLEASE ADVISE!!