"Exchange 2007 - my provider is Sherweb. Very reliable, excellent service, and cheap. "
He says he cannot see subfolders in exchange 2007.
Therefore he is lying (very doubtful) he is telling the trut His provider has not got exchange setup correctly (very doubtful) Or the n900 does not support exchange 2007 fully.
Can someone at nokia or an owner please provide this info, surely there must be someone out here who uses this thing for business???