Trying to play the game full screen. but I just get a small line across the top of the screen for each screen and the rest of the screen is black.  Windowed mode works fine.  I've tried selecting Full screen from the Reset menu, alt + enter and other key combinations.  Wondering if maybe my hardware is too new.  The monitor is connected via hdmi.  It is an AOC 22V2WG5 21.5 inch flat panel monitor.  My graphics card is an AMD Radeon 5500XT.  All drivers, os, etc up to date.  Windows 10.  Any suggestions would be greatly appreciated.

Figured it out. Apparently I can start in windowed mode and once I login, choose a character and start, I can alt + enter to switch to full screen.