I'll try to remember to check the thread when I get home and reply from there. I too had to look around to find the raw driver after doing a new system build.

One thing to keep in mind, I it's just reading an embedded thumbnail of some sort, rather than giving you any kind of on-the-fly accurate conversion or rendering of the image. Still, it's completely useful for seeing what the shot is, but don't use it to evaluate the image in any technical way without loading it in a raw processor/editor first...