Video will import, show on track but not in videoscreen

[Fluxus]

Hi there,

I'm running Pro Tools 11 on a fresh copy of windows 7x64 with an i7cpu and 16GB of RAM.

I'm trying to work on a video but when I import it the videoscreen shows a 'screenshot' of the underlying Pro Tools screen and nothing else.
I can play the video back, I can put audio under it but it won't show the video.

- I downloaded and installed the avid codec packs
- I tried converting the video to DNxHD and MP4 (even though the file works perfectly on my win10 system in PT11)
- Of course I downloaded Quicktime before installing Pro Tools

Any more ideas?

Screenshot:
1.


2. I can move the screen around, resize is and when making it bigger it glitches.

[Fluxus]

If anyone ever wonders. Make sure to install your correct VGA graphics drivers..