Sent a fellow FM'er a PM in response to one of his to me. My return PM to him did not show up in my Outbox. Thought maybe I screwed up in sending it. Sent it again, no cigar; still doesn't show up. I'm on Mac 10.7.4 and Safari 6. Anybody else?
It may not be the browser. I had a PM dialog going regarding the purchase of a lens. The seller never replied to my last PM, a conditional offer to buy -- but he posted in the FS thread that all PMs had been replied to. So I don't know whether he just ignored my message or never received it.
At any rate I bought from someone else, so not my loss.