Tried to use LateX in my journal i.e. [tex]a^2 + b^2 = c^2[/tex] but it didn't work. What I got was a box with the message "LaTeX graphic is being generated. Reload this page in a moment." I closed it and re-opened it but I didn't get the proper math notation and I retained the same message where the graphic was supposed to be. Did I do something wrong. How do I make this work?