Troubleshooting the Emacs Tramp Connection Used to Work - Password or Shell Regexp Wrong?

I am trying to troubleshoot why the emacs + tramp connection that was used to work is now not working. At first I thought it might be a Aquamacs issue, but I downloaded Emacs.app on OSX based on version 23.3 (9.0) and it doesn't work either. The remote host runs FreeBSD 7.4 and the default user shell is / usr / local / bin / bash.

If I try to open a file like:

Find file: /username@remote_host:~/folder/

      

        
        
        
      

    

... the cursor in the minibuffer stops:

Find file: /username@remote_host

      

        
        
        
      

    

... and I can't print anything. Mixing this, I can't Cg stop it. Emacs just locks. It expires in a minute or so, but is unusable until then.

The relevant lines of my .emacs file:

(require 'tramp)
(setq tramp-debug-buffer t)
(setq tramp-verbose 9)
(setq tramp-default-method "ssh")
(setq tramp-password-prompt-regexp ".*[Pp]assword: *$")
(setq tramp-shell-prompt-pattern "^[^;$#>]*[;$#>] *")
(setq password-cache-expiry nil)

      

        
        
        
      

    

And the password and shell prompts on the machine in question (anonymous) look like this:

Password:

[username@remote_host ~]$   # with a single space at the end

      

        
        
        
      

    

Tramp-password-prompt-regexp is ".*[Pp]assword: *$"

Tramp-pattern-pattern value "^[^;$#>]*[;$#>] *"

And finally, the last few lines of the debug buffer:

14:36:40.271851 tramp-get-connection-property (7) # check-remote-echo nil
14:36:41.090876 tramp-wait-for-regexp (6) # 
are you awake
#$ 
14:36:41.091037 tramp-wait-for-regexp (1) # File error: [[Regexp `\(^\|\)[^#$
?$' not found in 60 secs]]

      

        
        
        
      

    

I'm not sure where the other version of the shell command line comes from, but I don't even get to the password prompt anyway.

Any ideas what I might be doing wrong?

Adding

GNU Emacs 22.1.1 (mac-apple-darwin, Carbon Version 1.6.0) running, Tramp version 2.0.55. However, I am reluctant to rely on this as it is based on a terminal window, and I confused Cmd, Ctrl and Caps Lock to make my workstation look more like my home machine, and then told Emacs to treat the Cmd key as an alternative to Ctrl; Unfortunately, the terminal window traps multiple Cmd key combinations.

Further

Downloaded Emacs-22.3-i386-10.5.7.dmg from Emacs for OS X which uses tramp 2.0.58-pre. This works too, and has less problem with environment capture key combinations. But I still don't understand why versions of Aquamacs and later versions of Carbon Emacs stopped working.