New Post: Display area is black

I was reading your post in
http://blog.catenalogic.com/post/2008/post/2009/01/08/WPF-Webcam-Control-part-2.aspx

And I tryied to use in this tablet
http://www.motioncomputing.com/products/tablet_pc_CL910.asp
http://www.motioncomputing.com/choose/spec_dcam_f5.htm

My display area got totally black and I got frustrated (even it working in my Notebook (integrated webcam)

PS: What was funny when I clicked the shutter (in WPF) and an image appeared in the "Selected Images" area.

Do you have any suggestion for me? Please!