Character create screen messed up (mid-2014 MacBook Pro)

I just got the demo downloaded and logged in to create a character. The game logo is cut off at the top of the screen, and the character info overlay is drawn halfway over the character model, whether in windowed or full-screen mode. In full-screen mode, the graphics do not fill the screen but have black bars on the left and right. The cursor shows the little curvy arrow even when it's over most of the controls, and rotates the character instead of activating buttons and such.

I took screenshots but there seems to be no way to upload them direct to the forums from my computer.

My computer is a mid-2014 MacBook Pro (retina display), running macos High Sierra 10.13.6. I am reporting this problem here because because I don't know if I will be able to proceed to create a character and file a bug in-game. Can you have more than one character, or delete characters? I will see if I can find out.

If I manage to get into the game I will report here.

Okay I got into the game and managed to play for a bit. I filed the bug using the game's bug reporter too.