have you tried mining on nsgminer-win64-0.9.2 or are you saying it's unstable for you?
I can't seem to get it going right...
Sgminer simply won't do Neoscrypt at all for me either.
Gateless works great but has issues with interfacing with ZPOOL.
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So I have actually just swapped all my AMD machines to the Xevan algo on ZPOOL at the moment.
May simply just sell all my remaining AMD cards since I don't really do ETH mining & get more nVidia.