We are considering moving things back to the old server, everything is still intact there. However, we would lose any posts made last night and today. We're considering this due to problems on the server, regarding "server load" which makes the server less efficient, sometimes grinding to a near halt.
What you are describing, though, is related to a webpage and how a browser renders it, and it's not server side. Something in the code on the page itself is causing that message for the particular version of browser you are using. If it started in the middle of last week, then it could be a new banner ad, perhaps, or something else. I'm not experiencing it, but my version if IE may be different.
I'd like to investigate this, but I'll need to know what version of IE you are using. Look at the top of your browser and click Help... About Internet Explorer. You'll see a Version number which will be rather long. Please let me know what version it says, and I'll look into it.
Thanks