thanx hausoo, ur solution work for me...
root@kali:~# pyrit list_cores
Pyrit 0.4.0 (C) 2008-2011 Lukas Lueg
http://pyrit.googlecode.com
This code is distributed under the GNU General Public License v3+
The following cores seem available...
#1: 'CUDA-Device #1 'GeForce GTX 660M''
#2: 'CPU-Core (SSE2)'
#3: 'CPU-Core (SSE2)'
#4: 'CPU-Core (SSE2)'
#5: 'CPU-Core (SSE2)'
#6: 'CPU-Core (SSE2)'
#7: 'CPU-Core (SSE2)'
#8: 'CPU-Core (SSE2)'
what about my oclhashcat.plus do i need to reinstall it too? i still saying my gpu driver is not installed......