Well, after fiddling a bit I found that it must've been the keyboard's battery, 'cause I replaced that & it 'just worked'. kewl.
FWIW, one thing I had to do is install the fixed 5600 rotation fonts from
here. Thanks a bunch to whoever's page that is!
Just a a question/observation to whoever has one of these keyboards. I guess the pda stand is pretty worthless for Z users, right? With the position of the IR port on the Z, the only way to use the Z is lying on it's left side, propped up on a book or hanky. Even if I were to set up a mirror for portrait use, the stand bracket is too small to fit the Z.
Good keyboard, anyway. Especially for $10
hth somebody. havefun