annoying issue with autocorrect

Hi, my blackberry curve always changes "na" which is a legitimate word in my language to capitalized "NA". How do I stop it from doing that?

I tried typing na several times in a row, but it didn't pick it up. It's not a custom word and I don't know how to delete it from the regular dictionary. I also don't want to disable predictive typing because it's useful for English words. Any ideas??

Sent from my HTC One S using CB Forums mobile app

Go into the word substitution listing and change the cue for NA to, say naa or nna, would work. I used to do the same thing with MO and IL.

NA is not listed in word substitution list, that's my issue... it still replaces na with NA though. Any other ideas?

Sent from my HTC One S using CB Forums mobile app