Hello,

>> PS: does anyone know how to access the extra keys on a Sun Type 6 USB
>> keyboard? They don't produce key codes in XFree.
>
> extra keys? like "Help" "Stop" etc. do they work in MacOS?

Yes, these keys - and the volume adjustment keys above the number pad. 
And no OS I tried so far ( NetBSD, Win2k and MacOS 8.6 ) could use them 
- no scancodes, nothing.

have fun
Michael