Pete - I just noticed that a few of my rivalries are showing up with matches dated December of 1969. No scores listed, no courses/layouts listed. Just a rivalry win/loss/tie recorded and no details. They seem to be prior to July 2008 (although in other rivalries matches earlier than that show up fine). When I go to "edit rivalry" nothing shows up representing them.
A minor glitch/quibble - but still something that makes a bunch of my rivalries seem tremendously inaccurate.