if we start CaptainCasa by start.jnlp there is no address field displayed as if started as applet, by webstart or using the PageBrowser.
If there are several installations of the same application (e.g. test/production or old/new) then it is not easy to identify which window belongs to which installation.
It would be nice if this information is shown somewhere, e.g. inside the "Client Configuration" dialog available by the wrench icon in the down right corner.