I have reuploaded the Week 6 parts 2,3, and 4 powerpoint presentations as jpeg files in a zip file. I also reuploaded the two jpegs from the week 7 lecture that some of you were having problems viewing. Let me know if there are still problems.
FYI - I have never had problems downloading any of the stuff you upload before, but I couldn't download the week 6 .jpg files either. Luckily I have the original ones. Just wanted you to know it wasn't just Mitch (Carpentersreef).