[gollem] Check Quota button does nothing

[Murray Trainer]

Hi All,

I assume the Check Quota button displays the user's Linux disk quota and
usage.  My Linux users have disk quotas but when I press the Check Quota
button it does nothing and I get the error below in /var/log/messages:

May 18 10:20:50 ldap httpd2-prefork: PHP Fatal error:  Unsupported
operand types in /srv/www/htdocs/horde/lib/VFS.php on line 692

Any ideas how to fix this? 

Thanks

Murray