Communication with all MessageBoxes has now been re-established

I have installed BizTalk 2009 on the following environment:

– Windows 2008 server
– SQL Server 2008
– IIS 7
– Visual Studio 2008

I have also installed ESB toolkit 2.0.

The BizTalk applications generally work, except the event log all the time shows this as “information”:

“Communication with all MessageBoxes has now been re-established”

No errors appear in the log.

Also when I refresh the ports view in the management console I see they change from “stopped” to “started” and vice versa every few seconds.

Any ideas?