Could you check that in your config file /manager/includes/config.inc.php:
$database_connection_charset = 'latin1';
Which version of Php do you use ?
Why do you use : &mbstring=`iso-8859-1` in the page results for AjaxSearch (#75)
[!AjaxSearch? &language=`danish` &ajaxSearch=`0` &AS_landing=`75` &tplLayout=`tplLayout` &AS_showForm=`0` &mbstring=`iso-8859-1`!]
From the readme text file:
==== php_mbstring extension
&mbstring [0 | 1]
1 - mbstring extension available (default)
0 - don't use php_mbstring extension
The php_mbstring is supposed to be loaded.
If html charset page is "UTF-8", php_mbstring extension should be loaded for language which
need a multi-byte representation.
If the extension is not available for the PHP server, some charset like ISO-8859-1 (latin1) could be used.
With UTF-8, a message "Php_mbstring extension is required" when &mbstring=`1` and the extension not loaded.
In this case load the extension or set the mbstring parameter to 0 if you couldn't load the extension
In your case have you the Php mbstring set or not (look at your phpInfo) ?
If not (the extension is not available for the PHP server) set &mbstring=`0`
You should use 0 or 1 not `iso-8859-1` (which is interpreted as 1).
Have you installed the searchHighlight plugin ?