Hi - i wonder if anyone can help

ive installed webserver_auth module as required - enabled it (it works) - and then ive installed Cosign module (which requires webserver_auth) - and then enabled it in admin > modules - but after i save the configuration, the Cosign tick box remains unchecked - the Cosign module will not 'enable', no matter how many times i try

any ideas?

many thanks in advance

djax