I'm writing a page, got halfway through and decided I wanted to add an image. I click on the 'add an image' button. Instead of opening a window to choose, it navigates to a new page. I go through this, add a photo, and then insert into post.
It sits there, acts as though it's going somewhere then ends up with a blank page. What is going on? I have 2.7.1 installed, no fancy plugins, why doesn't this work like it used to?