I recently tried the GPE flavour of OZ3.5.2 on my C750 and it appeared that the fn key wasn't working (I then flashed to Opie in which it works fine). Now I've recently read that it might work if you press fn, then let go, then press the key you want (rather than holding Fn as you press the key which is what I was doing).
Is there anyone running GPE on their C750 atm? If so does your fn key work?
Cheers,
Si
P.S. If it still doesn't work, how does one go about debugging this?