Lost the waveform and can't find the frequency
I created a test tone track at 10 Hz and one at 15 Hz. However, I can't see the waveform on the screen and the frequency of the test tone track is not indicated at the bottom where it says 48000 Hz 24 bit and the time of the track (2 seconds). How do I see all of this so I know which track I am looking at? Something got screwed up with the waveform. I used to be able to see the waveform in the track. Now it is gone.

