nvidia driver opencl support

System running suse12.2 64 and using an nvidia gtx570 card.
I am trying to setup a bitcoin miner and that is running but reports no openCL devices available.
Before 12.2 other packages from nvidia had to be added for opencl and cuda support but with 12.2 they appear to have been incorporated into the drivers package.
as far as I can see the opencl calls should be able to find the device.
Within yast, software management, nvidia I can see the installed packages and under the nvidia-computeG02, files I can see the libraries and files for opencl.
Anyone any ideas? thanks for any replies.