[horde] Getting error about saving config.php file

[Gallagher, Tim (NE)]

Getting this error when trying to save configurations:
Could not save the backup configuration file
/usr/share/horde3/lib/../config/conf.php.bak.

Warning  Could not save the configuration file
/usr/share/horde3/lib/../config/conf.php. You can either use one of the
options to save the code back on Setup or copy manually the code below
to /usr/share/horde3/lib/../config/conf.php.

What is this and why is this happening.

Lat question for now ;) is there a good administration website for
information on setting up Horde?

Thanks

Tim