# TeX problems since server move

1. ### Avodyne

1,270
Many posts are showing invalid TeX formulae, even though they are valid. For example,

https://www.physicsforums.com/showthread.php?t=265656

When I click on the invalid TeX block, it shows [ tex ]...[ tex ] (or [ itex ]...[ itex ]), while I definitely typed [ tex ]...[ /tex ] (or [ itex ]...[ /itex ]). (Extra spaces added so we don't go into TeX mode.)

I'm using a Mac, if that makes any difference.

2. ### cristo

8,394
Staff Emeritus
The latex problem is a known one since the move. Greg and chroot are working on it.

3. ### Avodyne

1,270
Good, thanks!

4. ### JJBladester

287
Maybe this is related... When I try to denote A with subscript 'n', I type the LaTeX code:

$$A_{n}$$

However, I get 'n' as a superscript. Is there something wrong with my code or is it related to the server issue that Greg and Chroot are aware of?

5. ### JJBladester

287
Nevermind... The preview mode shows the superscript, but when I make the post final the subscript is working fine.

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