[kronolith] trouble with sharing calendars

[rene]

Hi,

I'm trying to setup horde 3.0.3, imp 4.0.2, turba 2.0.2 and kronolith 
2.0.2. I use cyrus imapd 2.2.10 with an alternate namespace (user/) as 
backend. Everything works fine except the ability to share a calendar. 
Imp is used as authentication handler.
When I go to 'My Calendars' and select 'Permissions' the popup window 
returns with the expected layout, but with an empty userlist in 'Owner 
Permissions' (except the logged in user), 'Individual Users' and 
'Groups'. The page ends with the following error:

*Notice*: (null)(): Retrying CRAM-MD5 authentication after 
authentication failure (errflg=1) in *Unknown* on line *0*

*Notice*: (null)(): Retrying CRAM-MD5 authentication after 
authentication failure (errflg=1) in *Unknown* on line *0*

*Notice*: (null)(): No credentials cache found (try running kinit) for 
aglio.henz.nl (errflg=1) in *Unknown* on line *0*

*Notice*: (null)(): Can not authenticate to IMAP server: Client canceled 
authentication (errflg=2) in *Unknown* on line *0

*In horde.log:
Feb 25 17:14:29 HORDE [error] [horde] Can not authenticate to IMAP 
server: Client canceled authentication [on line 245 of 
<snip>/services/shares/edit.php"]*
*
In the cyrus log:
Feb 25 17:19:48 host imap[8100]: badlogin: otherhost[<snip>] CRAM-MD5 
[SASL(-13): authentication failure: incorrect digest response]


Imp authentication works fine and also uses CRAM-MD5.

Do more people have this problem? Does anyone have an idea how to solve 
this?

René