CUDA initialization error CUDA initiailization error on deviceQuery

Hi
I’m getting the error below when I run deviceQuery on my laptop.
The following are installed:
JCuda 4.0 Beta1
CUDA Toolkit v4.0 (32 bit)
CUDA Tools SDK v4.0
NVIDIA Graphics Driver 275.33

Any ideas what could cause this error?

Thanks,
Emer

CUDA Device Query (Runtime API) version (CUDART static linking)

cudaGetDeviceCount returned 3
-> initialization error
[deviceQuery.exe] test results…
FAILED