I'm unable to duplicate this. Here's what I did, tell me how to modify it: I clicked on the "reply" button for message one, entered Message 4 into the message box, clicked on preview, then clicked on the "Message 4" link in the preview box, and it was fine.
Seems to work now. Maybe it reset when I rebooted.
Requestion: would it be possible to show the message being replied to in a window, as one sees with a general reply, so that one can reply to a long post without having to page up to write, page down to read, page up to write etc? This usually drives me to use notepad to compose in.
Thanks for all the effort btw - having been on several blog sites etc and seeing how much they SUCK to use compared to this forum, really shows what a good job you have already done.