Emmanuel:

In the picture above you can see the terminal window with the command I typed.

The second window is the ONLY response I get.

As far as I can see, I have some "compatible" Java version installed. I looked on the Sun website, but it's rather complicated to install Jave from their site. I'm so clumsy that I would prefer not to follow that list of instructions, as I'm afraid of screwing things up.

Hans