[sork] Vacation module error "#!/usr/bin/php Could NOT save a backup configuation..."

[Geoff Taylor]

Hi All,

I am evaluating Horde Groupware Webmail Edition. I have completed
the installation as follows:

RHEL 5 workstation  2.6.18-238.1.1.el5
php 5.1.6
MySQL 5.0.77
dovecot 2.0.9
Horde 3.3.11
vacation-h3-3.2.1

I performed the module configuration and horde shows the vacation
module as configured in the Administration setup menu. However,
when a user clicks the Vacation menu item under Mail, the following
error is displayed:

#!/usr/bin/php Could NOT save a backup configuation. Could NOT save vacation
configuration.

Permissions on the /vacation sub-tree are all -rwxr-xr-x root:root. It
looks like the rest of horde is set up in this way and it seems to be
working, so permissions do not appear to be the problem.

Google didn't help. Hopefully you guys can :)

Cheers,
Geoff