Thanks for getting back to me. Are you completely sure that you have the right version? I ask because in 2.0 and about the download failure message is "Could Not Download" and not "Couldn't Download," but I'm not sure how precise you were being about that message.

You can see the version you're running in the Help>>About window.

Thanks very much again for your help in debugging these problems. I'm changing a couple of things on the OSX version that should make it a bit nicer for the next major release.