Can you explain how your system is setup there in more detail? The number of computers you have and the version of Vizard you have installed on them.
You'll need to have the Vizard Enterprise version to run a
cluster application. If you want to do some tests and you don't have the Enterprise version for Vizard 3 try out the
Vizard 4 Beta. That provides an unrestricted Enterprise license with an expiration date.