Ok, I can now confirm that I?m 100% stable and everything works like a charm. Still, I don?t think that I?ll be keeping the 180.84 as I haven?t seen any performance gains and the noise level has increased noticeably. I guess this is why these are still in beta. If everything was ok nV would have probably submitted them to M$ for WHQL certification. I have to say though that I?m a bit disappointed with the cards. The fact that I had to intervene and manually increase the fan speed does not seem right. The cards should have managed the fan speed automatically in a way that would have allowed them to remain functional. Obviously they failed and this has me thinking. Anyways, thanks chizow, that was a good call.