Error Creating Chart

Hey guys,

I am trying to create a chart of data based on the user's selection of data. The code is below:

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The line that spits back the error is:

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It gives me an error saying something about object or application undefined. I don't understand why this would possibly kick back an error, I have specifically referenced each cell and lastrow is an integer value.

Does anyone have any ideas?

~Jason

Hi:
I use something like this:

ActiveChart.SeriesCollection(1).XValues = "=Data!R" & InitialRow &
"C" & Col & ":R" & EndRow & "C" & Col

Hope this help