Ok, I zoomed in on one of my WAV files. How do I unzzom it so I can see all my tracks again?
Every place there is a zoom in there is a zoom out. Look in the menu (view menu) or the toolbar buttons (those can be removed though, so they may be missing). There are also keyboard shortcuts. CTRL + and CRTL - or CTRL+SHIFT + and CRTL+SHIFT -