Scanning for Non Writable Directories
rdist will fail with no error message if it installs a non writable directory.  Basically, if one of your source directories is not writable by the owner.  It will be created non-writable.  Then rdist will fail when trying to copy any of that directory's contents into it.  You should generally leave this option enabled, unless you are sure all of your directories are writable by yourself.  The only advantage of turning this off, is that you will not have to wait while JumpBack searches the entire source tree looking for errant directories.