I am having some trouble. I just found an old IBM "clickly" keyboard. More specifically a KB-8923 And i bought the USB to PS/2 adapter to use it with my macbook, and it isn't working. I went to system preferences then I went to Keyboard and went to change the keyboard type and it just freezes on this screen, and nothing happens. I have tested it out on a windows based pc. but that doesn't help me since my pc sits in the corner of my room and isn't a macbook pro haha. well if anyone can please help me give me a shout out!!