"Connection lost" dialog needs to be improved - sheet dialogs should be modal

If I kill the monitored process a "connection lost: reconnect" is displayed

1. This dialog has no frame and moves along with a process window

2. I'm still able to switch tabs and combo boxes in the process window

3. If I click on MBeans tab and select an mbean, an additional dialog is displayed ("Connection refused to host:...java.net.ConnectException: Connection refused: connect".