I've tried this on three different Excel 2007 installations in both
2003 and 2007 file formats:

When I run a regression model on a set of data, the charts generated
by the Add-in cannot be moved, resized, etc. without the chart
literally "falling apart". Specifically, the Residual Plots, Line Fit
Plots, and Normal Probability Plots. When I click on a chart to resize
or drag it, parts of the chart move properly while other parts are
left behind...