I cured the problem. I was running some new/old desktop software that interfered with the side scroll bar. All is well. Thanks

Hello,
This one might sound odd but, for some reason my ability to scroll when trying to select a material or component has vanished. The scroll bar is still present and movable but it has no effect on the contents of the box. I am able to scroll by moving the scroll bar then selecting an item toward the bottom of the window. As you might guess this is a productivity drain not to mention real pain in the ass.
Thanks in Advance for your help.
Tom