Here’s my experience with the same problem:
I tried the BM intensity Shuttle with the new Sony Vaio F series 3DLaptop. Not much success unfortunately. I can manage to get a full hd feed while using Black Magic;s own video capture app, but cant get a feed to show up in most of other software that supports live capture/preview (example abobe on location wont show, AMCAP utility wont, neither will VLan or other Direct show capable applications. The driver shows up in the drop down list, but I only get a black screen no matter what settings I choose).
The problem with the Intensity is that it is very picky. In VLC you must set the FPS to 25 and the input chroma to UYVY. When creating your directshow application you must set the FPS to 25 again and you must set the capture resolution to be what you have selected in the Decklink options. If you do that it will work.