"Go Advanced" problems

When I was composing a reply to a thread today, I clicked on a "quick reply" button and began typing my message in that text box. I wrote most of it, then hit "go advanced" to preview a link I had put in before I posted it. Instead of bringing me to the correct page, I got an error page saying "invalid thread specified." Going back in my browser, I found the text box had been emptied, making me lose the post I had typed.

I'm using firefox 2.0, and I got to the thread from the "new posts" page. I stayed logged in to iChain the whole time.

Now...to type up the post again...

Aw jeez, and then again, from the "reply to topic" page. (I hit the quick reply button, then go advanced button right away, then started typing. I finished the post, hit "respond," and lost the post)

My postcount is suffering!