Frits: I understood your problem, but I don't have a ready solution because I have not enough information. When you use C-Script, there is no difference between A7 and A6.60. A7.03 just uses the very same A6 engine version as A6.60. Video_mode just works as before, as you can easily see when you start any C-Script project with A7. Almost all projects use video_mode.

You had reported script errors, so I think something's wrong with your installation anyway - see my answer above. Or it's a strange A7 error that no one else except you has experienced so far.

I'll be away next week, so I can't help you in the next days. But after my return - if your problem has then not meanwhile fixed itself - we'll walk through your installation process and have a closer look at your error messages. I think we'll find out what's wrong.