Tracks are gray and white, not solid gray[SOLVED]

Normally my audio, mono and stereo, tracks are solid light or dark gray depending upon how I am using them. Each track now has 3 horizontal stipes, gray-white-gray. What did I do to cause this? What does this mean? How do I get them back to solid gray?

Thank you

Press F1 on your keyboard to re-enable Selection Tool.


That worked. Thanks for your help. :smiley: