RSS feeds on SharePoint 2007 not working

Problem experiencing

RSS feeds from SharePoint are not working despite all system config being intact

“An unexpected error occurred processing your request. Check the logs for details and correct the problem”

Server architecture implemented

SharePoint 2007 installed on IIS\Web enabled server
Windows Server 2008 Infrastructure
SQL 2005 Infrastructure
Exchange 2007 Infrastructure
SharePoint services are distributed between the 3 server farm

Configuration implemented

SPN accounts have been set up for independent control of services
Kerberos authentication has been enabled
Account and server trusts have been set to Kerberos in Active Directory
RSS enabled in SharePoint Central Manager

Any ideas much appreciated!?