Network Connections list empty after installing Acronis Backup & Recovery 10

Symptoms:

The list of Network connections is blank after installing Acronis Backup & Recovery 10 on Windows Vista/Server 2008 x64.

Cause:

Installation of Acronis Agent incorrectly modifies permissions for the DCOM netman service and changes its configuration in the Windows registry.

Solution:

Follow the steps in Acronis KB 2980 and restart machine.
(Thanks to Acronis for resolving this!)