Hello,
after testing with Highchart Webfront isn’t working anymore. Firefox hangs and now i get this screen.
Feel free to answer in your own language!!
Gruss,
Trigus;)
This looks like IE… Installing IE9 will fix this problem.
paresy
Hello,
Now i know wat happend, i used firefox but it crashed with Highcharts and i deinstalled firefox.
For that reason IE became the default browser, and that was an old version.
The update of IE fixed the problem! 
Thx Paresy.
Greetz,
Trigus