Excel 2003

I have several charts on a dedicated chart sheet, each with the same number
of bars of graphed data.

I want to adjust the plot area to a particular size within the chart area
for each chart. I have used the "Selection.Height" and the other associated
"selections" with some success, but the plot areas still seem to reset
themselves a bit.

Any ideas on how to fix this would be appreciated and my thanks in advance.

Brad