Error on configuring the "System Information" page

Virtualmin Theme version: 6.8
Virtualmin version: 3.67
Operating system: CentOS Linux 5.3
On a fresh install (Centos 5.3 x86_64) saving the settings in the "System Information">"Configure this page" fails with the following error:
'Failed to save system information page configuration : Missing or invalid URL'

Status: 
Closed (fixed)