Can't get <%$ Resources:Class, ResourceID %> to work

[silas2]

I'm experimenting with the App_GlobalResources feature, I create the xml with my custom international settings in, in the folder, and, just as the walkthrough promised, I can access these settings as if they were strongly-typed data members thru code. But...when I embed the

<%$ Resources:Class, ResourceID %>

into the html, it doesn't render?

The local version : meta:resourcekey does work though.

I've had problems with "<%$...%>" before so maybe its got nothing to do with the resx side of things?