I don't know that this is a sensible solution, but it worked for me. The new libc6 conflicts with recent versions of dpkg, but not with the one in hamm; so I downgraded dpkg by manually installing it from hamm, then was able to install the new libc6 without losing everything else that depends on dpkg.
-- David Coe mailto:[EMAIL PROTECTED] R & D and Support +1-410-489-9521 Overlord, Inc. http://www.overlord.com