Spaces transitions and fullscreen apps

Hi there.

I have a 2011 MBP and a Thunderbolt display, and until now i had 4 spaces. I had MplayerX free from spaces so if i was watching a movie or something and if i changed spaces the movie was still on the screen on my MBP.

But i noticed, from time to time, that when i changed spaces (specially when i was opening a new app in another space) there was a very brief distortion on the video. Like a green/white 0.1 seconds flash. It doesn't happen always, it's really very rare, but it had me thinking if i was damaging anything. So i turned off for safety.


Did anyone ever noticed this? Is there any problem using spaces like this, with 1 screen in fullscreen?

Another thing, is it possible to have Spaces disabled when i have my MBP connected to the display, and have it enabled when the MBP is solo?

Thank you.

 

So… no one?