Hi,
I've the same pb with à Dell M4700 with an Intel Hd 4000 and a Nvida K2000M configurable in an "Optimus" way...have you fid a workaround and have you a solution to run "Octane Render" on this kind f platform?
I've de-activate Optimus, to let my win7 booting only with the Nvidia graphic Card ...