All of a sudden zooming using the scroll wheel on the Wacom EK remote makes the canvas flicker while zooming. It works fine in other applications, like Illustrator. Zooming using the mouse or keyboard shortcuts work fine.
Thanks for the reply. Initially I reinstalled the Wacom driver and rebooted the computer multiple time without success. I did, however learn that using the mouse and slide the zoom slider under the navigator panel would make the scroll wheel work some times. When that didn't work, holding the short cut for the hand tool while zooming with the remote, would lock the canvas in place and no flickering would occur. I did turn the computer off over night and now it seems to have fixed itself. If the problem comes back I'll try your suggiestion, but at the moment I don't want to rock the boat.