I just solved my issue with that. I rebooted (again) and then right clicked on the desktop and clicked refresh. Then I left clicked at the very bottom of the task bar and drug it to the bottom of the desktop (where I wanted it to be). Be sure to unlock the task bar during all this. It went where I wanted it to. I then locked the task bar.
I still haven't figured out why it jumped up to the left side of the screen in the first place. I've run several different virus scanners and no virus is being detected. Oh well, its back to normal anyway.
good luck.