HeaderTarget?? I lose my key strings in MenuItem..

hi there,

When I run my app I don't see the value for the key resources instead of that I see just the name of the key:

By default the contents of my resources keys are not found...

I suffered one similar problem with CommandBinding and putting this line it was solved:

CommandTarget="{Binding Path=PlacementTarget,RelativeSource={RelativeSource AncestorType={x:Type ContextMenu}}}

Thanks in advance,

Primary platform is Windows 7 Ultimate 64 bit along with VS 2012/Sql2k8 for WPF and SilverLight stuff