Changing DTC security settings
You need to change the DTC security settings on your Content Manager server (and if necessary on your Content Manager database server) otherwise the machine will experience problems receiving requests (reporting for example 'Transaction cannot enlist' in the Windows Event Log).
Procedure
What to do next
For more detailed information on this configuration, refer to Microsoft Knowledge Base article 250367, found online at http://support.microsoft.com/kb/250367.