Sometimes I can't get the dictionary in InDesign CS 5 for windows to learn word that I use over & over. The Add button across from Add to User Dictionary is disabled. How can I enable that button & save something like "mm" in "mm/dd/yyyy?"
I tried that, but it turns out the problem was that I didn't notice it was stopping at uncapitalized words & sentences. Once I changed the spelling preferences, that issue went away.