A couple of months ago I must have accidently hit a key where it seems my complete computer is backed up to dropbox.
I'm on a Mac and my "Documents" folder now has a Dropbox icon and it seems each file is no longer located on my mac but on Dropbox.
So I depend on internet speed for access to the files.
I have solved part of the problem by making all my folder "available offline" which, I assume, restores my Mac the way it was before.
But I would like to permanently disable this automatic backup and have my documents folder looking the same way it was before all this happened.