No luck so far. The images are RGB, sequentially numbered, 8 bit Jpegs (tried Tiffs too). When trying to import it will allow me to check the "Image Sequence" box (what was the numbered stills box in CS5) when there is just one image selected but removes it as an option when there are multiple images selected or Select All is applied - which is of course the whole point.
I am out of ideas at this point. Is it just a CS6 issue?