dhtmlx TreeGrid 3.6 load from JSON doesn't work

We purchased the dhtmlx professional suite and copied the package to our server exactly as-is.

In the TreeGrid initialization examples, loading from XML works but loading from JSON doesn’t. It throws the message:

Error type: LoadXML
Incorrect JSON

You can see for yourself here: extranet.who.int/vshoceuro/js/d … _json.html

Again, we just copied the files the way we received them from you with no modifications.

Thanks in advance for your assistance,

Jered Markoff
World Health Organization

the following line in your demo:
mygrid.load("…/common/data.json", “json”);

throws 404. Please, make sure that the path to your data is correct.