Active Chart Source data based on column data

[macfam929]

Hi. I am relatively new to the VB Macro's. I am trying to write a macro that creates a graph. I have everything working except i want to be able to format which data it graphs.
My data currently looks like this:
Column B Column C Column D .... Column M
0 0 20 40
0 0 21 45
5 0 22 50
10 5 23 80
20 7 24 100
50 9 25 105

My current code is:
Charts.Add
ActiveChart.ChartType = xlXYScatterSmoothNoMarkers
ActiveChart.SetSourceData Source:=dataRng, PlotBy:=xlColumns
ActiveChart.Location Where:=xlLocationAsNewSheet, Name:="Temp Graph"

What I want to do is instead of having the Source be dataRng and graph all columns all rows, to have it start graphing all columns (B-M) only after Column B is greater then 0. I can not delete the first few rows as they are used in other graphs.

Any help you could give on this would be greatly appreciated!! Thank you.