Import of RDF/XML with BOM fails

The arc parser treats an incoming RDF/XML file as a stream and doesn't correctly handle an XML file containing a BOM (Byte-Order-Mark), treating the file as invalid.

All about BOMs...
http://msdn.microsoft.com/en-us/library/dd374101%28VS.85%29.aspx

It's not going to always be ok to strip it before handing the file to arc, but that might be a short-term solution. Ultimately it needs to be fixed in the arc code, if it hasn't been already.