We realized, that after installing Live Messenger we do not see the Contact/System User icon anymore in our MS CRM system.
Figure 1: Live Messenger
Instead we get this IM presence icon. In 99,9 % it is grey because no one has all the CRM contacts in his Messenger and therefore it is uninteresting for our users.
I now tried to find out how we can turn this off and it is not very easy to find information about this presence information.