Double messages

All my pm's are being duped. I get one at time a and then the same message 3 minutes later. This is happening on all my incoming PM's. Any ideas what's wrong?

How long has this been going on?

Since Saturday. I don't get a lot of messages so at first I didn't think much of it.

How many times has it happened? I would wait a bit and see if it resolved itself. I have had it happen before from time to time when people get tricky fingers or impatient. And I have send double messages. Give it a bit.

Ten messages from 4 different people have doubled. It's no big deal, I was just wondering if it was widespread or just me.

After a couple of more doubles, it is now working fine. Dunno what changed,