Thanks for you suggestions Getalife2!
I run on Windows 7, but tried your suggestion and renamed the videoengine and codec files, N8 seems to run fine than!
I then tried something else, and copied the engine in the N7 components folder to the N8 components folder and voila N8 runs on the old videoengine again…but not for long…it froze again after a minute or so…but the proof is here, that it has something to do with the videoengine and N8 (old and new).