Julia, are you saying that within a few minutes you regularly notice that on one page your avatar will load and on another it won't?
Well sometimes the page loads fine but lately (past 3/4 days) some people's avatars haven't been loading at all (i.e. nothing at all - not even a X mark). Sometimes there is a X mark. It's really inconsistent though. For example sometimes on a page my avatar is a X and maybe one more persons' and then on the next page my avatar will come up as normal and someone elses will be missing completley or with an X.