If you're having the problem where when you start Steam in Wine and you can't see any fonts or text this may help you. This guide will show you how to fix the problem using Play On Linux. Feel free to ask questions.
NOTE: This is for Steam installs that run in Wine only. Not the new native Steam client for Linux.
The no text bug looks something like this.
Can be very annoying. Especially if you want to use Steam for anything besides launching your game.
1. Start by opening up PlayOnLinux.
2. Select the Steam install that you want to fix the fonts for.
3. Press the configure button.
4. You'll get a screen that will look like the one below. Type in:
That should be it.
Try launching Steam now. You should have all your text/fonts displayed the way they should be.