Last night (my time anyway), I was walking along the western road when a party chat message appeared in the chat window, however it was from someone not in my party, nor did anyone else in my party recieve this message. I have a screen shot if that helps. I don't know if there is much you can do about it, but I thought you guys should know anyway.
Never heard of a thing like this happen before. Are you sure it was a party chat message? It could have been someone nearby you and talking while invisible or stealthed.
I've seen it before, it's quite a common bug. Ignore it I suppose. Not a clue what's causing it, but it's been there for aslong as I remember, on all servers I have played. It happens from time to time. Relog and it should be over.
Yeah it was a party chat and I only got one line, took a screen shot just to make sure I was not going nuts, but if its a known bug then all is good as its the first time I've seen it since I started playing.