somehow no one quite got what I was asking.
Let me try to clarify:

I'm having trouble troubleshooting a probable Java problem.
The main site with the problem is:

https://www.justcallhome.com/

I get part of the page, but the menus on the left side
do not show up and neither do the "iPod Shuffle" and
"Mortgage Rates" ads at the bottom.

I have 4 Linux machines here, all computers work fine
on this web site except this one. All are running
Ubuntu 9.04. I've looked at all the applications
and plugins installed. (using Applications /
"Add/Remove" and also "Synaptic Package Manager")
All appear to be the same. (Now I didn't search
through all the applications, just searched on "Flash"
and "Java")The machine that's not working with this
is a new install, just trying to get all the bugs
worked out for the wife to be happy.

Sun Java and Flash are installed and work fine on the
other 3 computers in the house.

I've looked at all the plugins in Firefox, all are
the same. Again, it works on all 3 other Linux machines
here. Hmmm....

The only difference in the installs is that the
non-working machine has Ubuntu installed "Inside
Windows" since I use an ipod Touch and can't get
iTunes to play nice in Linux/Wine. Oh, the web-site
works fine when using Firefox in Windows on
this machine.

I've looked at the source code for the web page
and it seems that this is probably a Java issue,
although I'm pretty green when it comes to HTML.

To repeat (no insult intended):

1. I have JAVA installed, same on all 4 computers.
2. I have Flash installed, same on all 4 computers.
3. I have Firefox plugins installed, again same on all 4.
4 This web site (and others I assume) have a
problem only on this one computer. It's rendered
fine on the other 3 computers, all running Ubuntu 9.04,
Firefox, etc...

Ok, so what am I missing?