What am I missing? - external keyboard swapping option and command keys

This has happened on two (yep, two!) Macbooks (running 10.5):

External keyboard #1 and EK#2 swap the functionality of the option and command keys. EK#3 does not.

EK#1 is a matais keyboard/hub
EK#2 is the white apple keyboard that came with the flat white iMacs
EK#3 is an old, black, Apple Pro keyboard

Each keyboard shows default mapping in system prefs (option key = option key, and the like).

Help! What the heck am I missing? It seems like it should be simple...

 

If you had said 10.4 I would have thought that the cause was the new keyboard software not being installed. However, this shouldn't be happening with 10.5, especially with an Apple keyboard. Check your other keyboard-related settings in System Preferences, just in case.

 

I dug though everything I could find under keyboard/mouse and international and even tried selecting extended keyboards but it didn't help.

All KBs worked fine under 10.4, so I'm cheering for a driver problem. The hitch there is the one apple kb misbehaving...