Hi, Since you're a Pro user, I just wanted to let you know that you should use the Pro forum for support. Please refer to the instructions and user credentials in the e-mail that you got with your ...
If I remember correctly this is because the XML Bomb would cause the message viewer to crash also :-)
Please check the http log at the bottom of the soapUI window where you can see all that is sent over the wire, you should be able to see the XML Bomb contents there..