I tried to buy on LuLu and it said there was an issue with the source files:
"It has come to our attention that your order ... cannot be completed because the source files for the project “Points of Light” contain errors preventing it from being printed. We've unfortunately had no choice but to remove this item from your order, and have refunded you accordingly. You should see a refund reflected in your original payment method within the next few business days."
I don't suppose there's anyway you could re-upload and fix it? I bought the .PDF but have decided I need to also have a hardcover print to go with it!