Unspecified launch failure During cudaMemcpy3D

Accelerated Computing CUDA CUDA Programming and Performance
1

What does it mean if cudaMemcpy3D returns “unspecified launch failure”? This is when trying to copy a 3D CUDA array from host to device.

I had this working on Vista 32-bit with an 8800 Ultra. But it doesn’t work on Server 2003 64-bit with a Tesla C870.

Thanks.