I thought I had accidentally deleted a post the first time this happened, but I quoted someone and wrote a paragraph or 2, only to have it cut off a few words in. It's just happened for the 4th time for me, again I quoted someone and wrote out a message. This time it removed the 2nd paragraph. I'm using the Safari Beta in XP Pro (32bit). Although it has happened once in Safari in Leopard. Only after the big server switch. Just though I'd report it and see if anyone else had this problem.