Startup screen just messy green unreadable mess

[Bemul]

When I start the game from Steam, I can see the two logos normally. Then the startup screen flashes and quickly
turns into a unreadable green/brown screen with different color boxes where the text should be.

This problem occurred on a second day that I had installed this game. First day I didn't have this problem.

I have a mid 2014 MacBook Pro, with plenty of RAM.

I have a screen capture, but I quess I can't post it here...?

 

[Doodleroo]

This is typically caused by the 'Steam overlay' - try turning it of in Steam preferences.

 

[Bemul]

Thanks a lot! Now it's normal again.