Poclbm not working on Mac OSX, Mac Pro

[algominer]

I am getting this error message every time i try to do ANYTHING with poclbm....... Whats wrong?


Traceback (most recent call last):
  File "/Applications/poclbm/poclbm.py", line 3, in <module>
    from Switch import Switch

and saying there's no Switch model or something like that?


Please help me....