Model M keyboard on MacBook

Question

Greetings all,
I recently got hold of my first keyboard love, an IBM Model M (clicky) keyboard with a PS/2 connection. It's a 102-key British layout. I hooked it up to my MacBook with an active PS/2 to USB converter. I quickly discovered the Apple-supplied British layout didn't map correctly to the keys. I downloaded a third-party one that maps everything in the right place.
Here's the problem though. The British 102-key keyboard layout has an extra key between the left shift and the Z key with \ and | on it. When I push that, I get # and @ instead which correspond to the key next to the Return key, which also return the same characters.
I downloaded a keycode monitor and determined that Mac OS is registering the same keycode for both keys. That explains the behaviour.
As a test I rebooted into Windows XP via Boot Camp, without changing anything else, and the keyboard works perfectly with the XP-supplied British Extended layout.
So does anybody have any idea why Mac OS is thinking it's a 101-key board and not a 102-key. Any way to force it to behave?
Thanks,
-Ben

Answer 1

It was a no-name one somebody made in a forum I
found.
Try the Logitech stuff instead:
http://discussions.apple.com/thread.jspa?threadID=121809&tstart=75
But you may be right that it is a deeper software problem, or even related to the PS/2 > USB conversion.