SDK Imagedenoising proj bug?

Hi. I am trying to test SDK projects from NVIDIA.

In imagedenosing project, there is no compile error. And running is OK.

But after some seconds the drawing window changes to white, and every keyboard events are ignored. I must stop it by ctrl+break.

I tested it with Geforce 8800GTS 512 and FX5600. I got same result.

Is there anybody who can run that project without dead-lock?
I think some of that functions have bugs… I can’t find any reason.

Please give me some hints. I will change this project to my own project.
So I must know well this project.

Thanks.