Just an FYI in case you have not see this recent article:
http://support.esri.com/en/knowledge...s/detail/41175
http://downloads2.esri.com/support/T...NAL_050713.pdf
http://support.esri.com/en/knowledge...s/detail/41175
http://downloads2.esri.com/support/T...NAL_050713.pdf