The range slider on my timeline has disappeared! AH! Coming from 3DS Max, I've actually just got into this program and am trying to learn the animation tools. I did a test animation of a bouncing ball but when I finished I noticed the range slider in the timeline disappeared.

The range slider being that grey box you can move around the timeline to add keyframes. Mine has disappeared and its frustrating the heck out of me! I've tried setting all menus back to default and uninstalled/reinstalled twice, tried searching online! Nothing! If anyone can help me please I would Greatly appreciate it!