Here's my result:
NTLM-Multiforcer.exe -ccharsetfile -fNTLM.txt --min=6 --max=6 -v
Cryptohaze.com NTLM Multi-hash brute forcer by Bitweasil
Version 0.51 beta, length 0-14
Verbose mode enabled.
CUDA Device Information:
Device 0: "GeForce 8600 GT"
Number of cores: 32
Clock rate: 1.51 GHz
Target execution time: 1129532718 ms
Charset loaded (63 characters)
Charset: ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijlkmnopqrstuvwxyz1234567890
Hashes loaded (5 hashes)
Cuda error: invalid device symbol.
CUDA Drivers seems OK, because it works with other GPU crackers.