Since a recent update to 2.3, the autocompleter seems to be broken and we now have a JS error on the page:
Webpage error details
User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; GTB6.6; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; AskTbARS/5.9.1.14019)
Timestamp: Fri, 18 Mar 2011 21:15:41 UTC
Message: Object doesn't support this property or method
Line: 158
Char: 8
Code: 0
URI:
www.domain-name.com/components/com_uddeim/js/Autocompleter2.js
Message: Object doesn't support this property or method
Line: 158
Char: 8
Code: 0
URI:
www.domain-name.com/components/com_uddeim/js/Autocompleter2.js