Issue with CUDA-7.0 and Nvidia driver for GeForce GT 740M/PCIe/SSE2

I am completely confused why I receive device count error when I compile and program.
I have installed CUDA-7.0 and Nvidia driver version 331.113 from Nvidia-331.

I get below error every time:
modprobe: ERROR: could not insert ‘nvidia_331_uvm’: Invalid argument
CUDA error at …/…/common/inc/helper_cuda.h:1105 code=30(cudaErrorUnknown) “cudaGetDeviceCount(&device_count)”

I have attached the Nvidia-bug-report log file.

Please help me in this.
nvidia-bug-report.log (433 KB)
nvidia-bug-report.log.gz (71.6 KB)

See https://devtalk.nvidia.com/default/topic/760872/ubuntu-12-04-error-cudagetdevicecount-returned-30/