Hi, I just recently purchased the walking dead 400 days DLC on steam for MAC. When I opened the game it started in windowed mode and fixed these display preferences then played the first episode. Today when I launched the game it was back in windowed mode and my game save was gone. To make sure I didn't end up playing the whole first episode over again for nothing, I launched the game again, changed some preferences, closed the game. Opening the game, the preferences did not save. I have tried removing the game from steam and redownloading it. I have tried deleting all the save game data and prefs.prop files and other suggestions I've read on forums, but nothing helps.
I have disabled steam cloud functionality and the game still does the same thing. I am running the support utility now and will upload the results in a minute