Hello I have 4 gpus on 4 different systems. A 5770, a 7770, a 7970 and a 7950 I have gotten sgminer to work on 2 systems (5770 on windows server 2012 and 7770 on windows 7) but I'm having trouble with the other two (on windows 8 32 and 64 bit) At first, I could get sgminer to run (using phm-sgminer-4-1-0-windows on all systems) but I would only get hardware errors on the 7970 and 7950. The other two worked almost immediately and I've been getting around 600Kh each. I read on another forum that it can happen with old drivers so I upgraded. The two working systems had 13.12 driver with 2.8 sdk so I put the same on my other two systems. Now neither of them works at all! sgminer just crashes after the "darkcoin kernel is experimental" line This happens regardless of whatever parameters I choose regarding intensity, thread concurrency, worksize etc Any clues where I should be looking?