Michael,
I've noticed this from time to time too... in fact, once, I was online at the same time as the person I was Pm'ing to and they seemed to keep disappearing so I thought that person was not getting them... I must have retyped the message 4 times. I finally concluded that it must be that when the other person deletes a message, it is also deleted from your inbox/outbox. I don't know if I'm right, however.
Kerri
hello,
for some reason some of the private messages that i have recieved and sent are not being saved in the inbox and outbox, some pretty important ones too! ive looked through the outbox and inbox but to no avail. Any clue as to how to fix this or how to retrieve the lost messages?