Curser not working properly

I recently came onto this problem. I try to move the sidebar up or down and
it moves the sidebar but when I release the cursor things pop back to the
other end. The side bar is that bar on the of screen.

Also - it making up movies or slide shows, I see the pictures down in the
storage area where you add pictures, running from one end to the other. I
added sound to the pictures and couldn't get things stopped in order to mark
where the sound was to stop. It was completely out of control; going from
one side of the storage area to the other.

So I first noticed this problem when I simply wanted to pull the side bar
down on a screen like in Gmail and I can't. I have to go to the little up
or down arrow and click it until things move to where I want them to move.

I hope there is a fix. I didn't a virus check etc but still have
theproblem..

--
Ted Gervais
6233 CR 609
Site 325
Bushnell, Florida
33513