[imp] Problem getting Horde Groupware Webmail Edition 1.2.3 to work

[Son Truong]

Hello,

I've been running Horde Groupware Webmail Edition 1.2 on a test server 
just fine. On this same test server I've remove this version's horde 
directory under htdocs, and installed the new 1.2.3 version.

I've pointed this new version at a different MySQL database (5.1.30 - 
previously 5.0.67) and gotten the scripts/setup.php to work fine - 
installing the required tables for this new version.

But when I go to the webmail page I get these errors:

_______

Warning: Invalid argument supplied for foreach() in 
/usr/local/apache2/htdocs/horde/imp/lib/IMP.php on line 1249

Warning: Invalid argument supplied for foreach() in 
/usr/local/apache2/htdocs/horde/imp/lib/IMP.php on line 1249

Warning: explode() [function.explode]: Empty delimiter in 
/usr/local/apache2/htdocs/horde/imp/lib/IMAP/Tree.php on line 406

Warning: Invalid argument supplied for foreach() in 
/usr/local/apache2/htdocs/horde/imp/lib/IMP.php on line 1249

Warning: Invalid argument supplied for foreach() in 
/usr/local/apache2/htdocs/horde/imp/lib/IMP.php on line 1249

Warning: explode() [function.explode]: Empty delimiter in 
/usr/local/apache2/htdocs/horde/imp/lib/IMAP/Tree.php on line 406

Warning: reset() [function.reset]: Passed variable is not an array or 
object in /usr/local/apache2/htdocs/horde/imp/lib/IMP.php on line 1240

Warning: key() [function.key]: Passed variable is not an array or object 
in /usr/local/apache2/htdocs/horde/imp/lib/IMP.php on line 1241

Warning: Invalid argument supplied for foreach() in 
/usr/local/apache2/htdocs/horde/imp/lib/IMP.php on line 1249
A fatal error has occurred
DB Error: connect failed

[line 724 of /usr/local/apache2/htdocs/horde/lib/Horde/Group/sql.php]
Details:
The full error message is logged in Horde's log file, and is shown below 
only to administrators. Non-administrative users will not see error details.

DB_Error Object
(
    [error_message_prefix] =>
    [mode] => 1
    [level] => 1024
    [code] => -24
    [message] => DB Error: connect failed
    [userinfo] =>  [nativecode=mysql_connect() [<a 
href='function.mysql-connect'>function.mysql-connect</a>]: Unknown MySQL 
server host 'horde' (1)] ** 
mysql(mysql)://horde:PASSWORD at tcp+horde:3306/horde?persistent=&charset=utf-8&ssl=1
    [backtrace] => Array
        (
            [0] => Array
                (
                    [file] => /usr/local/apache2/htdocs/horde/pear/DB.php
                    [line] => 966
                    [function] => PEAR_Error
                    [class] => PEAR_Error
                    [type] => ->
                    [args] => Array
                        (
                            [0] => DB Error: connect failed
                            [1] => -24
                            [2] => 1
                            [3] => 1024
                            [4] =>  [nativecode=mysql_connect() [<a 
href='function.mysql-connect'>function.mysql-connect</a>]: Unknown MySQL 
server host 'horde' (1)]
                        )

                )

_______

I've no idea what is going wrong here. I've checked the 
horde/config/conf.php file for the Mysql hostspec and it points at the 
correct MySQL server - which is not 'horde' as indicated by the above 
error message.

Do I need a different version of Pear or something like that?

Any help appreciated.

Regards,
Son

-- 
Son V Truong * Unix System Programmer * Systems Group
LIS: IT Services * University of St Andrews
01334 462373 * svt at st-andrews.ac.uk
++
The University of St Andrews is a charity registered in Scotland: No SC013532