@Loong I've just found an old computer with Windows XP, and the same ChemDraw 16 behaves there in the exact same manner, producing lots of artifacts when PNG is chosen as the output. TIFF and vector formats are fine though.
This is easy. I'm removing duplicates from a library my collaborator gave me. All the papers and preprints are already LaTeXed up, but all the references for the 2 that came from Word need to be added. So far, very easy, just tedious.
You heat up your oven to a temperature of 350C. You then put a 20lb turkey in the oven. Why isn't the turkey instantly cooked? After all, the temperature of the oven is significantly higher than the turkey's.