Component symbol not showing up in a Papyrus UML diagram

Component symbol not showing up in a Papyrus UML diagram

I am new to Papyrus. Few days ago I installed eclipse Kepler (Build id:
20130614-0229) with Papyrus 0.10.0v20130612
I created a model, then I added a component diagram. I added few
components to the diagram and I saw that the shapes were simple
rectangles. I was expecting the component symbol with two smaller
rectangles on one side.
If I open the properties of one of them, I select appearance and I check
the box "Element Icon" I can see a small component icon appearing beside
the name, but I was trying to set the shape of the containing rectangle.
In the same view (Properties->Appearance) I tried to change the stereotype
display from "Text" to "Icon" or "Text and Icon", but nothing happens. If
I close and reopen the stereotype display is set back to text.
Is it possible to set the shape of a component type to the usual component
symbol? How can I set it?
Does the "stereotype display" select box have anything to do with it? In
this case do I have to do something else to make it work?
Thanks for your answers.