I'm glad to see that it's not just me. The only way I was able to get a line break in was by switching to source mode, adding a <br> tag, switching back, and then suddenly the enter key worked. Another problem that I keep having is that when I click on the First Unread Post icon in a thread, I'm re-reading posts. I'm starting to wonder if it's tracking this using a cookie and not using my account, since I read from more than one computer, but the only problem with that theory is that I keep ending up going back to post number 1 on some posts. =/