I did the following:
(per documentation) on both my Dell Inspiron 530 Desktop PC (Radeon X1300/X1500 Series card) as well as my Mac Mini (Intel HD Graphics 3000 512 MB) (new 2 months old)
OpenCLLink::nodev: OpenCLLink failed to detect a usable device.
But I verified with another friend who has a much older Mac Pro and on his Mac it worked. What should I do?