Well, it's taken me three days of testing Vegas 14 to be able to see the difference betwen the Open and the Import Media icons. I kept wondering why everything I selected went straight to the timeline. I finally realized that I was using the wrong icon. I never would have figured it out if I hadn't had Vegas 13 to compare to, then I hoovered over them both until the Windows bubble message appeared.
Yes, this amount of frustration deserves yet another thread.