Thank you all for your answers, ideas and suggestions. Certainly I wish there was a unique (or almost unique) standard solution but it would be capricious of me .. haha
Thanks friends
Best,
maxi

@woland

ah, ok. a cousin with the same name..:-)

thanks

Hi

I apologise for starting the fire and running away. Probably not good form! Just a couple of things on and the numerous plate spinnings of the day.

I will look to try Marks and others comments and go through the troubleshooting possibilities.

I am on a college network and have tried both a wired/wireless connection. These, apart from the obvious, have different connotations to the IT system here.

The content continues to reduce in quality over a mixture of set ups. It is  nowhere near as bad as the images from Sweden. I have tried this method from Macbook pro's, airs to imacs and the same quality reduction occurs.

I will trial the above methods and come back as soon as possible.

I must add that I think this is a brilliant tool and the possibilities are quite interesting. Please do not take the is as a criticism of people or Isadora. I have always found the advice, guidance and the program to be top notch. Felt I should sure clarify this as often shortened posts on forums can convey a different message.

Many thanks

eamon

my bad, after installing their soft the 4K is available ;-)

I too have a C920. But I did remove the LogiCapture software. Sometimes Isadora did not see the camera at all if I had opened the LogiCapture software at all that day. A restart fixed that. 

But for me once it works it was fine. Maybe remove the LogiCapture software and see? Not sure how else I can help here really. Sorry.

@dusx  The problem was solved !! The graphic card configuration was the problem. No more crashes

Thanks a lot !

Best,

Maxi 

@mc_monte Has one of these I think