I have just installed jessie (stable) on my laptop. The only user (apart from root) is "ceblair". I think I got emacs from aptitude, but perhaps it was already part of the default installation.
Whenever I try to open or save a file, I get a message that the file is locked. I can use the "s" option to steal the file and proceed, but would prefer not to have to do this. Perhaps a symptom is that, during an emacs session, the top of the window says "emacs@debian.c-blair@..." (my e-mail address) instead of "emacs@ceblair". I may have made a mistake during the installation in specifying my host name or something similar. Thanks, as always, for any help.