I have an UltraMonthViewMulti that I want to select the entire week (Sunday - Saturday) when a user clicks on a day.  On load, I am able to select the entire week for the start date that is passed in by doing the following (ex: select week of 10/4/2009 - 10/10/2009 - start date is 10/4/2009):

this.ultraCalendarInfo.SelectedDateRanges.Clear();

this.ultraCalendarInfo.SelectedDateRanges.Add(startDate, startDate.AddDays(6));

On the mouse click event, I'm calling the above code passing it a start date of the Sunday before the date the user clicks.  Ex: the user clicks 10/6/2009 - I set the start date to be 10/4/2009.  I can see the entire week getting selected, then it changes to just the day of 10/6/2009 being selected.  If I immediately click on another day in that week (ex: 10/7/2009), the entire week is selected.  It continues in this pattern (show a day, then show the week).  If I click on a day in different week, it selects that week.  It only is a problem if I click on a day in the week that is currently selected.  Any suggestions?