Hmm, can you post the error you're getting? I'll look into it and see what's going on.
Viewing post in Bugs? Post them in here and I'll fix them!
That sounds like a corrupted/incomplete download, maybe? You could try re-downloading it.
You're the first person that's had this trouble, and I'm looking through Day 5's script files... I can't find anything that would cause that. If you were getting a specific error message I could more precisely look, but that isn't possible here.