I have such a problem that when I put a video that is recorded in 25fps (50Hz) there is a problem. The video is recorded in 16: 9. Unfortunately, the video seems to be crumpled and black bars appear at the top and bottom of the screen. I did the screen calibration at 1080p 50Hz and the menu screen is ok but when I turn on the video it is crushed.
When the same material I play at 60Hz is everything ok only I can see the convulsions on the screen (video 50Hz).
CPU Intel G3420 (3.2Ghz)
Gigabyte GA-B85M-HD3 R4 motherboard
Geforce 630GT Graphics Card
SSD 128GB drive