Along with the results the remote computers return are log messages generated during the search. This can be very useful for analyzing problems with remote computers. To open the log click on the Show Log button (highlighted below):
The log window shows information and error messages. More detailed information about each message can be viewed by clicking on the 'View...' button.
If a problem occurred running the search on the remote computer and Debug Mode is switched on then extended error information may be show in the Application Error Log.