Bruce,
The graph was resizing when I didn't want it to.
For example, With a small set of point names it was fine, but when you loaded a large set of names, cleared the data, then loaded a small set, the graph was huge.
I figured out how to stop it. The FrameType in the standard window where the graph is located was set to Resizeable. Changing that to Double fixed the issue. I just wasn't aware of the standard window settings having any effect on the graph.
Now the graph stays the same overall size no matter how many point names.
Thanks Bruce.