cublas running error

Hi all,

When I run the simpleCUBLAS in CUDA 4.0 (Geforce 470), ,
cublasCreate() returns CUBLAS_STATUS_NOT_INITIALIZED in NV driver of Ver270.51 & VER270.81

but after changing the DRIVER to VER270.61, cublasCreate() returns CUBLAS_STATUS_SUCCESS.
The problems seems Ok in Ver270.51, but why it doesn’t work in the latest version (270.81).

the problem was solved. because I use REMOTE control to connect PC. When I operate the PC directly, no problems now.