I wondered about what you're describing, too, until I looked at my current settings:
It looks like the setting is already off.
Here's what happens to the first second of the file. I trimmed the silence so the audio started immediately, and you can see the first .275 of the second is silent.
Something else really odd about the window since I upgraded: the window is WAY too big for the contents, and I always have to resize the window just to get to the "OK"
Here's how it opens:
Here I've drug it over a little so you can see where it ends; you still can't quite see the bottom because of the taskbar...
Did I somehow get a corrupted copy? Should I try downloading it again? Is there someplace I can go to clear all the settings and maybe get it back to the defaults?
Thanks for your help!