Charts will not work if the user is using a non-Microsoft browser like Firefox or Safari and has upgraded to Adobe Flash 10.
The problem with Flash 10 is caused by an incorrect check of the Flash version number (our fault) in versions before 4.4.
Upgrade to 4.4 and regenerate the web pages and everything will work.
No one uses Flash 5 or earlier anymore, so we can disable the check, the charts work for Flash 6 or later.
The procedure is:
1. Download the .htm file to your local computer
2. Patch the file
3. Upload the patched file.
If you cannot download the program, all you need is a texteditor like Notepad.
Open the source of the web page and search for
plugin = parseInt(plugin.description.substring(plugin.description.indexOf(".")-1))>= 6;
and replace it by
plugin = true;