Date Chart and AddArray - Multiple series, different dimensions?

[User (Legacy)]

IE 2000, ASP

I have a XY chart where the X axis values are dates, and the Y axis values are percentages.  This chart has 1-4 series.  I'm adding the data using "AddArray" and the CfxData.Array.

In every case, each set of the corresponding date array and value array are the same size.  If every set of arrays all are the same size, then everything works as I would expect.  However, if two series have a different number of data points, even by one, then it seems it tries to fill in the shorter set with CDate(0), (Dec. 30, 1899), and my chart ends up looking like:

with all the data scrunched over to the right.

Here's what the relevant code looks like:

      ' Add X value arrays (dates)

      For nCount=0 To UBound(aDates)

        ' aDates(nCount) is an array itself

        CfxArray.AddArray aDates(nCount)

        oChart.DataType(nCount) = CDT_XVALUE

      Next

      nChartArrayYAxisLBound = UBound(aDates) + 1

      ' Then add the Y value arrays

      For nCount=0 To UBound(aResults)

        CfxArray.AddArray aResults(nCount)

        oChart.DataType(nChartArrayYAxisLBound + nCount) = CDT_VALUE

      Next

     oChart.GetExternalData CfxArray

     ...

I can provide more detail if necessary.

So essentially, my question is: can I have a date XY chart with multiple series where the number of data points varies from series to series?

Thanks,

-Daniel