I finally really found time to spend some quality time playing with my VB (thanks Christmas Holidays)! 
During this I noticed some very minor display glitch and would like to hear your opinion whether this is the infamous display glitch from detaching display cables or something else:
The glitch is only on the right monitor and only visible when there’s enough “red” on the screen (that is why I only noticed it after some more gaming). Then I see in the lower right corner two horizontal black lines, but they only block about one fourth and one eight of a line, respectively. What is a bit strange (and made me suspect that this is not the “normal” display glitch): These black/darker line(part)s move over the background graphic as if being in a different plane when I move my head up and down a bit. Is it possible for the detaching cable glitch to also give this kind of behaviour, or is it more likely that I have a small scratch somewhere in the optical path, what do you think?
Thanks for pointing to the other threads – after reading this I’m definitely sure it is what is also described there. Since it is not really annoying in my VB in the moment, I will not dismantle it before something more serious sets in. But it is nice to know what is going on!
What is still striking to me is, that it is absolutely affecting single lines and perfectly horizontal. If it is caused by dust I would have expected something less aligned…
