I have seen things such your description of the text editing happen when you go to a site with a new browser version or even a new OS version. It takes the Forum Admins some time to update for changes in the HTML or other codes used on a site. Since I am no expert, I cannot tell you how to fix it, but I remember something about resetting your DNS setting using Netstat or some other network utility.
We all were requested to do that when this site is updated. I will have to check to see if I can find the exact procedure.
Edit: I think what I was looking for was ipconfig /flushdns but that seems to be related the address you use for a site. It still might help your situation, or you may need to reset IE. Since it seems to...