Just recently, I can no longer interact with the "post" page within the admin screens. It loads, with errors on the page. I can add a title, but I can not get into the post entry portion of the page at all. It will also not change between "visual" and "code".
All other fields are accessible.
The error that my browser gives me when I ask for more info is:
Error: "this.content.window.document" is null or not an object
This has worked fine in the past, this just started happening recently. This runs on a Windows server.