I had no problems with the first 3 episodes, but with this one, I am having the same issues as posted above:
Most of the time when I start game, it asks if I want to buy it. I have to ALT-F4 to close game, and re-open several times to get in.
Once I do get in, I click "GET IT" for ep 4, and immediately get a LOST CONNECTION message.
Very frustrating for those of us who just want to play the game... I hope these issues get resolved by tomorrow.