My first post here,...but not new to SU

Today I downloaded the 2013Pro update for SU, and when I went to render as I usually do, sing Maxwell, the in progress render previw was no longer functioning properly. No matter how large I made the window, the preview/in-progress rendering or a portition of it was only diplayed in a small section across the top of the window. I was ble to view/priew the progress in "full screen mode" (but that defeats the purpose of being able to see it in a window, so you can do other thinks while it is wrking away ).

I ran my last render 3 hours before dwnloading the new version, and all was wrking as should at that time.

I checked for updates with both Maxwell and Silverlight, and was up to date.

I also tried going back and running the render on SU-8pro, after the issue in 2013....and the problem has now appeared there as well.

...all of this leads me to believe that the new version changed/modified, or deleted something that is needed for maxwell to run properly.

Has anyone else experienced this, or have any suggestions.

Attached is a screenshot showing what I am trying to explain.

Thank You.

Marc