Or even 'quotes'?
I have this problem all the time when I PM somebody here. I hit their PM icon and the "PM" window opens up with a subject of "(No subject)". I THEN hit the "Back" button on my browser, copy the subject heading of the thread, RIGHT-click the PM icon and select "Open in new window" and then work back and forth between two windows.
The first request would be that the subject line would migrate to the PM window. Sending PMs with "(No subject)" is lame and makes it difficult to not only keep track of my PMs, but also tells the receiver nothing about the PM I just sent.
The 2nd request (and I don't have any idea if this is possible) would be to have a "PM with quote" option. Usually when I'm PMing somebody, it has to do with something that was posted. So, as I stated above, I end up having to work multiple windows to send what I would find to be a clear and efficient message.
Thanks