Anyone getting 'error -1001' "ERROR - There are no available devices"?  Only one rig does this but all other miners work fine on this rig except CryptoDredge.  Only thing I can think of is that I did downgrade nvidia drivers from 398.11 to 397.64 recently.   Was having stability issues with 398 and all other rigs run 397.64 also....can't wait for the update!