I have always been able to download and save patterns in a PDF; However, lately when I try to load, it will only go so far then I will get either "a file I/O error" or "the file was damaged".
Anyone else having this problem?
What to do, what to do?

clear your cache and see if that helps.

Check and see if you need an update on your Adobe Reader, or if you recently updated, verify that the update loaded correctly.