ftp won't allow users who run bash as their login shells?

[Viet Anh]

At my site (Vax 6320, Ultrix 3.1), users who run bash as their startup 
shells are denied access upon connecting to ftp.  Here is an excerpt 
of a failed session:

  Connected to media-lab.media.mit.edu.
  220 media-lab.media.mit.edu FTP server (Version 4.146 Tue Jul 25 23:56:36 
  EDT 1989) ready.
  Name (media-lab.media.mit.edu:): foobar
  Password (media-lab.media.mit.edu:foobar):
  530 User foobar access denied.
  ftp: Login failed

I did include bash in /etc/shells which I think where ftp looks up for shells 
it allows accesses. Other shells in the file (sh, csh, tcsh) work fine.

Thanks for any info.

Viet Anh
(anh at media-lab.media.mit.edu)
( \/\ @ Media Lab, MIT, Cambridge, MA, US, America, Earth )