[tde-users] kate configuration

At some point in the last year, kate started behaving differently here: when it opens a file for editing, there is now an extra column to the left of the contents of the file; the extra column shows the name of the file being edited. I can remove this extra column by hitting the word "Documents" which appears (rendered vertically) at the extreme left of the kate window. But I do get fed up of having to do this every single time I open a file for editing in kate. So how do I configure kate so that this additional column with the name of the file being edited no longer appears when kate opens a file for editing? (I looked at the kate configuration file, but nothing obvious struck me; searching the Internet also didn't produce anything useful that addresses this, but it's perfectly possible that I wasn't using a very good search string.) Doc -- Web: http://enginehousebooks.com/drevans