Could it be a problem that it contains 6 containers for different kinds of smartcards?
That's probably part of it. Try /dev/sda1 ... /dev/sda6 and see if any of those work.
If not, then try getting a different 6-in-1 reader. The first one I had didn't work with Linux no matter what I did. I returned it and got this one and it's worked perfectly, at least with CF cards.
Did you buy a different brand or did you just get a different specimen of the same brand and type?
Guus.
-- A.J. Bonnema, Leiden The Netherlands, user #328198 (Linux Counter)