I've been having these same issues. I literally kept rewinding and trying everything I could to be able to continue. I'm super happy you guys have figured out how to "fix" the issue by downloading episode 4 and 5... HOWEVER, I bought episode 1-3, have LOVED the storyline and gameplay, and now I don't have enough funds to get 4-5 until Friday and here I am, stuck in the middle of the crisis with Duck being bitten and wanting to get this train rolling. THIS.... SUCKS.... ASS!!!!!!! AAAAAHHHHHH!!!!!!
... but thanx for getting the issue "resolved" TellTale