CUT_DEVICE_INIT() on Xp 64 bit Fails

I am running on Windows XP 64bit and am using a Tesla C870 processor on CUDA 1.1 release of toolkit, SDK and driver, and am using Visual Studio 2008.

I am able to compile the sloutions provided as examples alright but am getting run time errors when it executes CUT_DEVICE_INIT() and cudamalloc() funtions.

Anybody encountered this problem before and if so any solutions?