Hi bagginsbill,

I am using just a basic Microsoft wheel mouse, nothing too fancy. I do click in the library window, but again to no effect. I have tried clicking on another window, such as the parameters window, and using the scroll wheel , and then switching to the library window, but the scrolling only works in windows other than the library window. I am currently only using the tree display so I will give the other library displays a try as well.

Thanks for your help.

nabob21