each time I find something new. Unfortunately not for the better. It appears PF mangement invests more in designs (which change every time I come back) more than in user comfort. For example: 1. Now I can't preview a post using LaTeX (which I need since my LaTeX spelling is very bad) 2. I tried to enter a name of a book I'm using: Landau-Lifshi&z (&=t) is the name, and it appears like "Landau-Lif****z". I think this method of blocking courses is more annoying than useful (in other words, it shi&s ) 3. I think there used to be an English spellcheck button, where did it go?