Some users may notice that certain Java apps do not work properly / as expetected in Ubuntu Linux. Insofar as I can tell the issue is caused by all 3 java plugins being installed at the same time.
Several users have noticed the issue resolved by uninstalling all Java plugins except for the Sun Java plugin.
To do so, open Synaptic Package Manager and search for (and uninstall) the following packages.
- openjdk-6-* (all packages beginning with ‘openjdk-6-’)