I sent this to support of ning, but wondered if anyone else had this sort of activity in their network?
My #1 poster says,
"I can not longer reply to private messages. I have deleted all the comments from my page and deleted all the received, sent and archived private messages. I still can't reply. Lucy sent my a test message this morning and I got that, but could not reply to it. For several days I have been having trouble placing graphics on the site too.some of the ladies are having messages disappears after they posting them in the discussions section"
My first thought is that perhaps this is a browser related issue. Can you ask your member to clear their browser cache, or (even better) try a different browser to see if that might help narrow down the cause of the issue?