ZBrushCentral

Mac typing becomes symbols

I’ve just installed / started using Zbrush 4R7 for mac.
System: Macbook Pro Late 2013; OS X Yosemite; Wacom Intuos

While using Zbrush or after closing the application, all of my characters become symbols:
a becomes å; d becomes ∂.

Any idea how to fix this? I’ve resorted to shutting off the computer.