All the docos I’ve read say that in 2.66 there should be a “Cycles Hair Rendering” tab in particle settings, where’s mine then
Never mind, you need to select the experimental feature set fin the render tab and make sure CPU is selected as the device. (RTXM)
need to set it to cpu and experimental on the render tab
lol if only I’d waited a while 
Thanks though, quick response, (not quite quick enough :})
I think you also have to set it to Cycles Render. Your screen shot still shows the internal renderer. Andrew Price has a detailled tutorial with some backgroundinformation on configuring and rendering hair with cycles. http://www.blenderguru.com/videos/how-to-render-hair-with-cycles/
