problems with client gui

Hello,
I've got wu-ftpd 2.6.1 installed on a Solaris box. It is the distribution 
from sun (SMCwuftpd).

I've got real users, guest users, and anonymous users. Real users and 
anonymous users work fine with regard to my problem - this only applies to 
guest users.

The problem is that using a GUI client, I can't see the files in a 
directory. logging in from a command line client, the "ls" command works 
fine, but the "dir" command does not. Looking in the logs it looks like 
the "ls" command sends the nlst command whereas "dir" sends the "list" 
command.

Also looking at the logs I see the GUI sends the "list" command and gets 
no answer, which is at least consistent.

But why - is there a way to allow the "list" command to work for guest 
users? I don't see anything in my ftpaccess file or in the man page that 
talks about restricting this command.

Thanks,

/ Sid /