"No Internet Connection" message displayed by Typecatcher

First of all, thank you very much for your efforts. This tool is both a fantastic idea and practical. However, when I run the application, I do have some functionality issues;

After selecting a font from the font list, in the main display window of the tool I receive a message "No Internet Connection" although I can still install the font without any problem.

Is this a known bug, or am I not running the application with the proper permissions?

Thanks in advance.

Again, great job!