There is a light down there, the size of a pin head (I called Apple yesterday). Apply says they only support the Datalink adapter, although Belkin says their needed drivers have been part of OSX since 10.2
Apple suggesting trying new batteries, which took some time to try. No go. In short, I got's me a bum board that will likely need to be returned.
"Give me Bluethhooth, or Give me a Broken Tooth"