java applets do now work on amd64 running 32bit browser

Binary package hint: ia32-sun-java6-bin

On up-to-date hardy amd64, running a 32bit browser (swiftfox), and using the java plugin shipped on ia32-sun-java6-bin (at /usr/lib/jvm/ia32-sun-java6-bin/jre/plugin/i386/ns7/javaplugin_oji.so) with it, liveconnect applets won't work.

Procedure:
1) Fresh install of Ubuntu Hardy Heron
2) Install all updates (Optional)
3) Install swiftfox (www.getswiftfox.com)
4) Install ia32-sun-java6-bin through synaptic or aptitude
5) Open the site www.bb.com.br
6) Click on the first blue arrow (indicating right, or next) on the top right corner of the site (right beside three textfields, the last one, beside the mentioned link, pre-filled with "Conta").
7) A small applet (should be a virtual keyboard) starts to load, but after it is loaded, a red X icon appears instead of the actual applet (under the text "Teclado Virtual BB")

Using the self extracted package from sun (jre-6u7-linux-i586.bin and jre-6u5-linux-i586.bin tested), everything works fine.

Using OpenJDK with the shipped firefox3 package is also NOT an option, since the very same site (www.bb.com.br) doesn't work due to the lack of liveconnect implementation on OpenJDK (the virtual keyboard loads and works fine, but when the button "Entrar", or "Enter" is pressed, the page is simply reloaded without sending any information).