NetBSD doesn't like my A1200

[orione <orione%fol.it@localhost>]

Hi to all,
I've wrote some time before about my bad results to install NetBSD 1.4.1
on my A1200.
Now I've tried almost every combination of ram/scsi/ide/boot-sequence,
but I get always the same result: NetBSD boots, tells me all my
configuration, the asks what keyboard I have, then the system does not
take care of anything I do; I mean that the cursor il alive, on the
screen appear all that I type, but there is no response exept line
scrolling.
If I stop the startup process [with CTRL-C], I can see the root file
system, do some command, then, after say 1 or 2 minutes, all I write is
ignored as said above. No errors, no panic, no freeze, shell alive.

A friend of mine suggested me that could be the keyboard interface I
use, a micronik pc keyb adapter... any idea ?

With best regards,
Marco.