(EE) Failed to load module "wfb" (module does not exist, 0) 
Error: API mismatch: the NVIDIA kernel module has the version 1.0-9625, but 
this X module has the version 1.0-9742.  Please make sure that the kernel 
module and all NVIDIA driver components have the same version. 
(EE) NVIDIA(0): Failed to initialize the NVIDIA kernel module! Please ensure 
(EE) NVIDIA(0):     that there is a supported NVIDIA GPU in this system, and 
(EE) NVIDIA(0):     that the NVIDIA device files have been created properly. 
(EE) NVIDIA(0):     Please consult the NVIDIA README for details. 
(EE) NVIDIA(0):  *** Aborting *** 
(EE) Screen(s) found, but none have a usable configuration.