I tried installing software packaged using InstallShield but each time I ran the installer it would fail with the message:
could not load wizard specified in /wizard.inf (104)
The problem turned out to be that after recently installing Lucid Lynx the JRE is OpenJDK, even though I had installed the Sun Java packages (sun-java6-*) I hadn't updated my Java alternatives. All that was needed was to switch to the Sun JRE, thus:
sudo update-java-alternatives -v -s java-6-sun
In fact, I subsequently removed all OpenJDK-related packages.