I have noticed when reading email which of course would be in computer braille but is translated into grade 2 as it is being read, some one-word symbols if directly preceding a linebreak aren't present. To and with are the two that I've noticed so far. If reading in scroll mode or with the thumb keys, they are skipped, but then if you go back and read a word at a time with the chord commands, you see that they are there. Hope this makes sense.
Pam
