I figured out that when trying to change the button font it does not work. To be sure about that, I tried to change the button font property of some examples that came with the package and the behavior is the same, that is, the font does not change. Any ideas?
We have reproduced the button-font bug that you describe and fixed the problem in the QCRTGraphNet.dll. We will send you a new pair of DLLs via e-mail attachment. Other developers can just reuse their download links to download the current version of the software. Users of the trial version of the software should download from Trial Version link of the Real-Time Graphics Tools for .Net product page.