Unable to utilize the thin black scroll bar

This topic shows as completed in another post but it is not resolved. When I run an analysis of the chrome extension, a black scroll bar is evident on the right hand side of the data. I am able to make the window larger and the side larger but I am not able to access the scroll bar.  Yes I can scroll down with the down key but access to the scroll bar would be much more effective. I sent in a screen shot about a month ago and I never heard back.  I have deleted and reinstalled the extension already.