Tramp with public key ssh

[Michael Powe <michael+gnus@trollope.org>]

Hello,

I am set up for an ssh public-key login to an account.  When I try to
edit a file there via emacs + tramp, tramp asks for the password for
the key and then hangs.  Now, if I C-g after a minute or so, examine
*Messages*, I see something like this:

Enter passphrase for key '/home/powem/.ssh/id_dsa': ..........
tramp: Sending password
Enter passphrase for key '/home/powem/.ssh/id_dsa': 
Enter passphrase for key '/home/powem/.ssh/id_dsa': .
Enter passphrase for key '/home/powem/.ssh/id_dsa': ..
Enter passphrase for key '/home/powem/.ssh/id_dsa': ........

Any ideas on what might be happening here?  I After the initial
password request, none of the other material shown appears in the
minibuffer.  That is all just in the *Messages* buffer.

Thanks.

mp