Also while running Diablo on a MacPro with a 5870 (@160k hash/s rate), my UI screen is sluggish. When I move windows around, they are very jerky whereas when Diablo is off, they are smooth. Is there a way to give priority to the US of the open appwhen its being used?
With my previous graphics card (NVidia8800), the UI operations seemed to be smoother, although the hash rate was 1/10.
Increase -f, it expects a multiple or divisior of 60. Also, that 5870 can easily do >350 mhash/sec... OSX really sucks.