Facebook just closed the bug report that I posted about the nl_BE problem.
"This locale is not currently supported. But you should be able to download the plugin, even if the locale is not supported, it will fall off en_US locale."
http://developers.facebook.com/bugs/442881812429427
This is just stupid. The changes that I see from a few months ago are that (as mentioned in the error comment) the sharing buttons no longer break when you pass in an unsupported language, but return to en_US.
They must share their language / locale.
Guy steels
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