Thanks for the quick reply and the expertise - very much appreciated.
Can this be turned off?
It's a royal pain because when I need to use the top of my desk, I push the mouse in that direction automatically to get it out of the way.
When I move my curser past the bottom right corner of my monitor screen all programs go transparent.
When this happens (transparent) I can see my desktop and transparent shadow boxes where open programs were.
When I move the curser back onto the screen everything goes back to normal.
I've...