Icons in menuButton

Hi there

I want to use icons in a MenuButton, but it seems like there is a issue with it.
If i add
to the MenuButton at the bottom of the example at
http://www.smartclient.com/docs/8.3/a/system/reference/SmartClient_Explorer.html#menuDynamicItems
the icon isn't displayed. Even though the MenuButton should have implement the icon from the Button class.
I'm using the latest 8.3 release
Is there a fix to this?