Great video, this is exactly what I suspected was going on. The bad thing is it seems like there would be a fair amount of work that would have to be done by Cyberlink to fix this. However it needs to be addressed.
It seems to me people doing video editing tend to have higher end rigs, and tend to be the first to adapt the new technologies (in this case High Res displays), so it seems like a pretty important feature/fix to implement. Especially as these displays inevitably become more prevalent.
Since this isn't as easy as changing a setting in PD, is there somewhere else I/we should be posting/contacting? Do people that work for Cyberlink that would have anything to do with product development/updates read these forums?