IMCLDevice::nvMCLCreateInstance(MCL_VERSION) fails build/run CUDA SDK jpeg decode samples

I successfully built the sample in c:\CUDA\nvMCL\projects\TestSimpleD3D10.sln. But when i execute it
IMCLDevice::nvMCLCreateInstance(MCL_VERSION=3) ; FAILS and NULL returned

I had installed the latest 2.3 CUDA related drivers/SDK/toolkits/samples everything only yesterday

used VC++ 2008

running vista 32 bit ultimate sp1 and geforce 9500 GT card