There is a grey frame around FSI Viewer and I need to click FSI Viewer once before it works. Why is that?

Reason:

This issue applies to users of Internet Explorer only. It applies to all ActiveX controls like Flash player, Java applets and alike. The reason is a patch for Microsoft Internet Explorer removing “Automatic Activation of ActiveX Controls” released 2006.

Solution:

We provide a workaround and a detailed description in the related tutorial.