Disable default sorting of messages in Outlook 2007

All my message folders keep defauting to sorting by date (they didn’t used to to that, it seems like one of the recently installed updates had this “feature” included). I change say, my inbox to be sorted by subject, navigate away to check something out and when I come back it’s gone to sorting by date and I have to reset it 😛 Is there anyway to stop this from happening?