Since v3.5 was already set up and installed (on the dev machine and in the Toolbox), I had to install .NET 2009 as well. The installation went fine but the new chart tool wasn't in the toolbox. I added the TeeChart.dll as explained here, but I am noticing some different behaviour with v2009.
The image below shows a new application and a TChart 2009 object on the form. When I right click on the chart, I do not see the same context menu that I have with v3.5. Is this something that was removed in 4.0?
Also notice the TChart control icon difference in the Toolbox between v3.5 and .NET 2009.

http://dl.dropbox.com/u/2292646/tchart2009_error.png