Scrypt-jane -i 1 had no effect at this stage so I switched to my onboard HD 4250 as primary and setup my GTX 660 purely to mine without a monitor attached. Using both nvidia and amd drivers together turned out to be easier than I though and I could even overclock the 660 and now I'm getting upto 2.18 Kh/s with scrypt-jane. 

cbuchner1, you are a beast!