Display Issue with WebMonthView | Infragistics Forums

asp

<ig:WebMonthView ID="WebMonthView1" runat="server"
                WebScheduleInfoID="WebScheduleInfo1"
                Height="800px" Width="100%"
                NavigationAnimation="Linear"
                WeekendDisplayFormat="Full"
                WeekNumbersVisible="False"
                EnableMultiResourceCaption="True"
                EnableMultiResourceView="True"
                StyleSetPath=""
                EnableAppStyling="True"
                AppointmentFormatString="<SUBJECT>"
                AppointmentTooltipFormatString="<LOCATION>">
            </ig:WebMonthView>
            <ig:WebScheduleInfo ID="WebScheduleInfo1"
                runat="server"
                EnableRecurringActivities="True"
                EnableSmartCallbacks="false"
                EnableAppStyling="True"
                EnableMultiDayEventBanner="True"
                EnableMultiResourceView="true"
                EnableMultiResourceCaption="true"
                ReminderFormPath="forms/Reminder.aspx"
                EnableReminders="false">
            </ig:WebScheduleInfo>

              <ig:WebScheduleGenericDataProvider runat="server" ID="WebScheduleGenericDataProvider1"
        WebScheduleInfoID="WebScheduleInfo1" AppointmentBinding-StartDateTimeUtcMember="AppointmentFromDate" AppointmentBinding-AllDayEventMember="AllDayEvent">
    </ig:WebScheduleGenericDataProvider>

     WebMonthView1.Visible = true;

                IList Resources = null;
                Resources = GetResources();

                WebScheduleGenericProviderBindings();
                WebScheduleGenericDataProvider1.ActivityDataSource = CurrentCalendarAppointments;
                WebScheduleGenericDataProvider1.ResourceDataSource = Resources;

                Session["WebSchdeuleObjects"] = new object[] { Resources, WebScheduleInfo1.Appointments, CurrentCalendarAppointments };

                WebMonthView1.DataBind();
                WebScheduleInfo1.DataBind();

the WebMonthView is in an update panel but it has the same behavior inside or outside the panel. we do some custom css on the appointments (colouring) but even when i remove it it still has the odd/bad line.

DateTime Helper1;
            DateTime Helper2;
            DateTime Helper3;
            if (DateTime.TryParse(QuickDateControl1.Earliest.Text, out Helper1))
            {
                if (DateTime.TryParse(QuickDateControl1.Latest.Text, out Helper2))
                {

                    TimeSpan diff = (Helper2 - Helper1);

                    Helper3 = Helper1;
                    Helper3 = Helper3.AddDays(diff.Days / 2);
                    Helper3 = Helper3.AddHours(8);
                    WebScheduleInfo1.ActiveDayUtc = new SmartDate(Helper3);
                }
            }

This sets the calendar to the middle of the date range, normally a month

if (chkShowExceptions.Checked && (rdoView.SelectedValue == "Monthly" || rdoView.SelectedValue == "Weekly"))
        {
            List<AppointmentObject> Exceptions = DALCompany.GetExceptionCalendarAppointments(QuickDateControl1.Earliest.Text, QuickDateControl1.Latest.Text, "", "", ("[" + DALSettings.GetProgramParameter(MineMonitor.User.ProgramID, "TrainerGroup") + "]"), "", "", true, MineMonitor.User.ProgramID, true, "All", "", 0, true);
            if (Exceptions != null)
            {
                foreach (AppointmentObject Exception in Exceptions)
                {

                    Exception.COMM = Exception.Subject;
                    Exception.Color = "ffcccc";
                    Exception.IsException = true;
                    Exception.AppointmentFromDate = Exception.RecDate.Value.AddHours(4);
                    if (Exception.AppointmentToDate == null)
                        Exception.AppointmentToDate = Exception.AppointmentFromDate.Value;
                    CurrentCalendarAppointments.Add(Exception);
                }
            }
        }

this is the data for the grid, we have tried changing the offset of the hours on both the records and the ActiveDayUtc, the offsets might help but both active resources have the same data set so i'm at a loss as to why one would display correctly and the other not.