Hello xolokram,

Yes I'm running a 64bit OS. I can run any 64 bit cpu miner. But gpu miner doesn't work. I thought this was a common issue and that there was an easy solution.

Thanks for your help !

I had proble too, but then I realised that I need the right compute capability version based on link bellow. eg. for my GTX570 I dwnloaded files for
compute capability 2.0 (the others doesnot work)
Hope this helps.

- cudaPTSwin-0.3-cuda-2.0-crz.zip - compute capability 2.0
- cudaPTSwin-0.3-cuda-2.1-crz.zip - compute capability 2.1
- cudaPTSwin-0.3-cuda-3.0-crz.zip - compute capability 3.0
- cudaPTSwin-0.3-cuda-3.5-crz.zip - compute capability 3.5
- cudaPTSwin-0.4-experimental-cuda-3.0-3.5-crz.zip - compute capability 3.0/3.5 (fastest - will need 1.2/2+ gig of GPU memory)

Check your version here -> https://developer.nvidia.com/cuda-gpus