Hi Robert,
I'm having a couple of issues, am running Win7 and IE9 here. I just wrote my first post for a while and even though I was logged in, it asked me to log back in again. After I submitted my credentials in my message preview, most of the message was missing. If I used the back button to get back to where I had originally typed the message, I could then preview and submit without any problems. This time the submit has worked ok.
The other issue occurs when I use the back button. If I hit back from within a thread to go to the thread listing, it backs me to the location in the list where I had opened the link, and then a couple of seconds later, the list jumps around and ends up in a slightly different position to where it was before the jump.
Cheers
Nathan