This is the file I use:

<?xml version="1.0" encoding="UTF-8"?>
<jnlp spec="1.0+" codebase="...">
<information>
...
 <offline-allowed/>
 <shortcut online="false">
...
 </shortcut>
</information>
<security>
 <all-permissions/>
</security>
<resources>
 <j2se version="1.6+"/>
...
</resources>
<application-desc main-class="..." />
</jnlp>

If I am online the program doesn't start (it does ask for permission to
run the app., and opens a javaw instance, but nothing happens.  No
error, No exception, No gui.)

However if I am offline the program works great (note: The program also
works when I use the jnlp file to open the program it is the shortcut
that does not work when online).

So in short my program only works from the start menu when I am
offline.

Please tell me how to fix this.
I'm using java version 1.6 build 41
Might this just be a problem with the current version or have other
people had the same problem as me.