Latest, win10 x64. Not every time. All another miners dose not have any problems, even Alexis ccminer.
How often does it happen? Does it happen only at start or during working? OC?
Yesterday rerolled to driver 378.78. Win 10 x64, RAM 16Gb, page file disabled, NHM 1.7.5.7
GTX 1070 only:
excavator.exe -a equihash -s equihash.eu.nicehash.com:3357 -u 3DJhaQaKA6oyRaGyDZYdkZcise4b9DrCi2.worker1:x -cd 0 gives me error 3 times of 3
excavator.exe -a pascal -s pascal.eu.nicehash.com:3358 -u 3DJhaQaKA6oyRaGyDZYdkZcise4b9DrCi2.worker1:x -cd 0 mined during 1 minute 3 times of 3
GTX 970 only:
excavator.exe -a equihash -s equihash.eu.nicehash.com:3357 -u 3DJhaQaKA6oyRaGyDZYdkZcise4b9DrCi2.worker1:x -cd 1 mined during 1 minute 3 times of 3
excavator.exe -a pascal -s pascal.eu.nicehash.com:3358 -u 3DJhaQaKA6oyRaGyDZYdkZcise4b9DrCi2.worker1:x -cd 1 mined during 1 minute 3 times of 3
GTX 970 + GTX 1070:
excavator.exe -a equihash -s equihash.eu.nicehash.com:3357 -u 3DJhaQaKA6oyRaGyDZYdkZcise4b9DrCi2.worker1:x -ca gives me error 3 times of 3
excavator.exe -a pascal -s pascal.eu.nicehash.com:3358 -u 3DJhaQaKA6oyRaGyDZYdkZcise4b9DrCi2.worker1:x -ca mined during 1 minute 3 times of 3
We tested for this bug on several machines we own using various cards and could not get results you are claiming. Everything was working fine.
If it happens 3 times a day it is nothing to worry about - NHM will restart crashed miner.