Show visualization buttons has been enabled in the Visibility options from the Global tab of the Web Client's options, but when clicking on the Tree Map or Star Tree view a popup window shows a blank page with a red cross. You may find that the Star Tree works and the Tree Map does not.
The Star Tree visualization works on Java 1.2 (or later). The Tree Map visualization works on Java 6 (or later).
Verify the version of Java you are using. You can check your currently installed version here from the link below. If you do not have version 6 or later, download and install the latest Java runtime.
NOTE: Please note that Business Objects/Professional Text Mining only supports Java 1.5 (and NOT later versions) so if you try to use visualizations on a machine that has Professional Text Mining then you may see that that the Star Tree works and the Tree Map doesn't
6.0 Service Pack 1; 6.0 Service Pack 2; 6.0; 6.1; 6.1 Service Pack 1; 6.1 Service Pack 2; 6.2; 6.2 Service Pack 1; 6.2 Service Pack 2; 6.3; 6.4; 6.4 Service Pack 1