I have an 868 that I've put back into service and updated to the latest firmware (2.39) along with CPS 1.39. It's on the later hardware version, 1.1. Everything works, but it appears I'm stuck with white-only screen fonts. I like the black background, but I thought others indicated the update would also allow me to add color fonts like the 878, 890, etc. Is there something I'm missing?