There is a known issue that if you change the "Regional Setting" other than English, then KG-Chart
can't start, displaying error message "Failed to read image data."
The setting is in control panel: "Regional and Language Options" - "Advanced" - "Language for non-Unicode programs".
It needs to be "English (United States)" or "Japanese" for KG-Chart to start.
I'm now trying to fix this issue so that KG-Chart can run with any language setting.
(Even though, I can't really grantee that KG-Chart works fine on any language setting, but I think at least it should be able to start...)
Meanwhile, please change the setting if you want to try KG-Chart for now.