P6 V8

I seem to have a problem with the spell checker in primavera v8.2.

I know if a work is spelt incorrect you would change it but when I come to a word ie-: Abbreviations is not in the dictionary and I add it, it does not seem to keep it in the dictionary. As you go along and that abbreviation is further down in the plan it would ask to change it or add it. This seems to happen with the spell checker every time I use it.

Has anybody had the same problem & is there a fix for it

Thanks in Advance for any help on this matter.