Narrows the screen (Grand Theft Auto 5)

Recently I asked people on the transfer with a pirate on the license. And here was surprised that it seems to put the license and needs to be more quality content...but NO!!! Now at the beginning of the splash screen on the sides is narrowing. It helps that the change from the old to the other and then back again. Stripes do not appear if you play in windowed mode and if you play at 60 Hz. Still, despite the fact that the game I bought I want to play in a full window).
My Characteristics

NVIDIA GeForce GTX 1070
Monitor LG FLATRON W1942S
The resolution of 1440h900
Format 16х10
Frequency 75 Hz