I use a Zenith 184-1, and have never had any trouble with 3.55 or 3.56. Neither the screen or keyboard have ever objected to anything. Maybe I'm a plain vanilla user, not a lot of shortcuts. I don't write for a living, I just appreciate the programmability of Xy, and the fact that I can push as much of it out of my way as I wish. It's clean. Tight. After 25 years in this business (DP), I appreciate it. =Mike=