`  == I've worked it out ==  I've worked out the problem. That code that we've entered into our vector files on;y changes the way that we see the TeX in our browser. I noticed that in Google, a little box appears in the bottom right that flashes up code while the page renders. Then all the LaTeX looks lovely. The problem with IE9 and MFF is that my password isn't saved on those, so I wasn't logged in. Those screen shots are what anyone without that code in vector.js would see. Its seems a real shame; but unless others use it, we'll be seeing what others don't see. —   `