I've been using an IBM SpaceSaver II very successfully with my Mac Pro through one of those cheap PS2 > USB converters for about the last six or seven years. Recently, possibly after upgrading to Snow Leopard, a wizard popped up telling me the keyboard type was not detectable and asking me to type the key to the right of the left Shift key (KTTROTSK).
Unfortunately this wizard just hangs and doesn't seem to register the keypress and indeed once I've cancelled this and carried on with OS X the KTTROTSK does not do anything at all. In addition, the Cmd and Option keys are reversed and swapping them around in the Keyboard pref pane has no effect. Can anyone help please?