Course alerts permanently on since updating to 9.60?

Recently updated to 9.60, now have course alerts seemingly permanently on when navigating? Highly annoying as they sound when off course by 10m and when back on course. Any idea how to turn them off? Course alerts while navigating was on the release notes for 9.60, but I think it's been poorly executed. They're nothing to do with the 'marine' course alerts, these are switched off on my unit and still no joy.