Cool! I'm glad to hear you could finally sort it out.Next I changed via Build / Configuration manager the Active solution platform to X86 and I could rebuild the solution without problems and I could run it without problems!!
Not necessarily. If AssemblyFolders is correctly set or latest TeeChart.dll registered in the GAC this should be done automatically.1. If I install a new version of TeeChart for .NET should I in all project manually remove de reference to the TChart dll and add it manually again?
Yes, this is recommended to avoid similar problems.2. If I install a new version of TeeChart for .NET, should I first remove the old version via Configuration window/Programs?
Yes, the 15th October is an update build also available at the client area.3, In the client area it is said that the full version is released 30th July 2009, but in the release notes it is stated that the release notes are made 15 October 2009. So it is a newer release than 30th July 2009? This is very confusing for your customers!
An update build only contains the new assemblies instead of full documentation, examples, etc.; which comes with the full binary insatller.4. Why is there also an Update build version on your site? Why is the full version not automatically the latest version?
If you are interested in getting examples and documentation install latest full maintenance release and then install the update build. Check AssemblyFolders are updated or remove them and check the assemblies in your project.5. What should I do to install the latest reliable version?
Hope this helps!