[imp] logon already filled out with a username?

[Sean D.]

>>> I already told you that it only gets populated with an HTTP 
>>> authentication
>>> user name, if such an auth scheme is in place.
>>>
>> I don't know what "HTTP authentification" is. In config/horde.php I 
>> can see these authentification types:
> 
> 
> If through the use of an .htaccess file or similar mechanism I get asked 
> for a login and password (you'll get a actual dialog box pop up on the 
> client that is authenticating to the website), that is HTTP 
> authentication.   It isn't an IMP mechanism, but according to Jan it 
> will put the username that is in use into the name field.
> 
> If it is being populated beyond that, it's likely the client remembering 
> the login info for that site.
> 

right... so... check for the existence of any .htaccess files or .htpasswd files 
in your website. if there are some take a good look at them to be sure that one 
of them doesnt have some kind of authentication options set... or they also 
might be set in the servers apache configs somewhere.  or in 
horde/config/horde.php but as you said you have imp handling auth.