Special Character

Our software is having problems with our customers in South America, where
if they enter the character ? (Keystroke ALT-0227).  When the character gets
stored in the database, it gets changed to a normal a.  If I set the
Transliterate property of a TStringField to False, the character can be
viewed with a corresponding TDBEdit.  Though the character is shown as a #
character when using the AsString to read in the field.

Does anyone know of a fix or work-around to this problem??