pcknights22 on "Wordpress replaces x"

Hi I have a major issue
I have a title 3x1 but the wordpress keep changing the x with the multiply x sign (which is smaller and positioned in the mid).
What I need is the simple x x Even if I change it from html view and save it the next time i open the post and update it will change it again.
So right now every time i save the post i have to use x
Is there anyway to permanently deactivate this or replace it?
I have tried the ps-stop auto formatting module but didn't work
Any ideas mostly appreciated.