Objects grouped cannot be separated

[Bob]

Hi, at all.
I have downloaded some presentations of technical meetings (RoadShow) from
the internet Microsoft site.
I have found inside to their the interesting objects.
The problem is that some of these objects are grouped in non separable
group.
When I use the right button on these objects the option "Ungroup" it is not
active but it is grey (i am italian this option are SEPARA/RAGGRUPPA).

For example if you downloaded this presentation:
http://download.microsoft.com/download/5/7/f/57fccffb-75fd-4f47-a4c4-3c6f3375e602/1-Intro.ppt
in the slide number 14, in the right low corner there is a group of non
separable objects.
I am sure to have already seen that objects separately used in other slides.

Why I can not to separate these group of objects? I am sure this group is
not an image.
Thanks

 

[Shyam Pillai]

Bob,
It's an image - a PNG image hence it cannot be ungrouped.