External drive not showing in sidebar
I have set my Finder Preferences for the Sidebar to show connected servers and external drives. However, I can not get a mounted external drive to show under Devices in the sidebar. It has appeared previously, but now I can't get it to stick on the sidebar when dragging the external drive from the finder window to the sidebar. Noticed some older posts on the Internet from others experiencing this issue. Is there a fix?
MacBook Pro RD, early 2013, OS 10.8.5, with attached Dell external monitor.