I don't know if this is a Sierra because I only installed it a couple months ago. For some reason when I highlight some text on a web page and then go to drag it the text deselects. Am I doing something wrong here? I left click and highlight the text I want to drag to my desktop. I release the mouse button then click the mouse button again on the highlighted area and drag to desktop. It's the way it always worked or am I nuts. Now when I click on the highlight to drag it just deselects everything!