The call to ActiveRecord::Base.connection.add_limit_offset! needs an :offset parameter when using rails-mssql-2000-2005-adapter. This is non-standard, as far as the protocol for add_limit_offset! is concerned. Unfortunately, MS SQL Server needs the non-standard syntax because of limitations in its pagination capabilities. I cloned yaml_db and made the fix, but I can't test it without dumping over a gig of data.