Is the cross site coming from the server side or the client side?

Hello all,

I am trying to get FOP2 to run on a program called Xibo (http://xibo.org.uk/).
It is a .net based application which can display webpages, pictures, etc.
When I run FOP2 from inside Xibo, I get "Connecting to server, attempt number :X" and of course it never ends.

I have added the FOP2 URL to IE as a trusted site and basically set security to none.
I have ran Xibo as an admin.
I have ran Xibo in XP mode.
I have even changed flash security.

Nothing seems to work.
Just as an FYI, FOP runs fine outside of Xibo.

Any hints on what I can try?

Thanks!