3. Vim, Gedit
4. Gmail (on the web)
6. Screen, yes
Also affects 12.04 (with gedit 3.4.1-0ubuntu1).
When the selected/renamed file is a directory: see Bug #1105232.
Had just opened Gedit, and the file chooser dialog from there. Had successfully selected one directory in the dialog, and the crash occurred when I clicked (I think) on the file name listing column. Couldn’t reproduce it again.
If I’m reading it correctly, the submitter actually wants gedit to wrap the text at the *right margin*, and it still doesn’t do so in Lucid. That makes this a duplicate of #329500.