Hazeltine 1421 - anyone heard of it?

I just got a Hazeltine 1421 terminal. When I first got it, It showed nothing but garbage on the screen, then I took it apart and cleaned everything, reseated chips and cleaned their pins. I fired it up again and it worked perfectly, save for the keyboard jamming on some keys. I cleaned the keyboard completely, and was able to fix most of the problems, except the keyboard is missing the "-" keytop, the "T" key jams occasionally, "E" is erratic and "J" is really gouged and bent, and falls off easy (looks like someone dropped something heavy on the keyboard). All in all, save for the keyboard, it's in very good shape. The question that I have is wether anyone has heard of or seen a Hazeltiine 1421. I haven't been able to find anything on the internet, but I did find the Hazeltine 1420 manual on vt100.net. Linux doesn't seem to have an entry for the 1421, but it does have one for the 1420. Inside the access panel is a switch labelled "1420" and "Other". I have tried it on "1420", and told Linux that it is a 1420. It is barely useable. No programs will display properly, things like pico and pine get really screwed up, not clearing the text from the screen when they write the next screen, etc, even screen seems to do funny things to it, sometimes after exiting programs or typing "clear" the prompt appears in the middle of the screen. I am guessing this is either due to the termcap or terminfo(what's the difference, I always forget?) entry, the settings on my terminal, or maybe the programs I am trying to use aren't meant to deal with a Hazeltine terminal. I would appreciate any information anyone has on this terminal. Thanks! Ian Primus ian_primus(a)yahoo.com