No icon displayed on plasmoid once installed

[Francesco Nwokeka]

Hello to all devs.
       I have a strange problem. When launching a plasmoid with
"plasmoidviewer" I can see protocol
icons (im-<protocol>) but when I install the plasmoid, this protocol
is not visualized leaving an empty
space. Screenshot[1].

Do you guys know what's going on?

Thanks,
       Francesco


[1]http://postimage.org/image/2budewwis/