I'm using Premiere Elements 14 on a Mac. As I use my mouse within the timeline window to view the various media elements on the timeline, the horizontal left-right slider automatically activates when the mouse is moved to the right side of the window to scroll vertically up-down. This is bothersome because all of my media elements on the timeline are pushed out of view to the left. After scrolling down using the vertical controls I then need to manually scroll horizontally to the left to see my media elements on the timeline. Any way to stop this auto horizontal scrolling?