Im having some issues using the "Display Message" action in ZCM.

I have created a test bundle that is meant to popup a display message, however it is not working.

The bundle deploys ok, and when run from Nalwin it shows as having ran sucessfully without any errors, but the message popup is not displayed.

I have tried this action both under Install & Launch with no result.

I have tried changing the "Seconds to be displayed" setting as well.

Is there any trick to using this?