Freesync Mode not fit all screen

Hi guys,

Need some help...

After buying a new monitor Asus mg248q and try to use the freesync mode, I see that my screen is slightly move from bottom to the top, leaving about 5 pixels in the bottom with a black border.

It doesn't fit the whole screen. If I switch off adaptative sync in the monitor ODD then if fit the whole screen, but I loose freesync.

I'm using Display Port cable and the latest Crimson Drivers 16.9.1.

Can someone help me?

Thanks in advance.