I purchased, downloaded and installed The Walking Dead Season One on Steam for my PC with Windows 7 yesterday, and subsequently purchased, downloaded and installed the 400 Days DLC. After they were both finished installing, I played through the first episode. Then, today, I went back to the game and played the second and third episodes.
After finishing the third episode, I clicked the "Play" button for Episode 4 and it began to load. The application then stopped responding on the loading screen and halted my computer. I ran into this problem multiple times after trying again and again. I then tried rewinding to the final chapter of Episode 3, replayed that and when it brought me back to the title screen, I clicked "Play" for Episode 4 again and it gave me the same problem.
I used Telltale Games' "The Walking Dead Support Tool" and was asked to copy the download link into my thread, so here it is: http://www.sendspace.com/file/tde5ir
I would like to remedy this problem before Season Two is released so that I can use my save files to influence the new episodes. Thank you.