Why when I try to log in onto a Windows 2003 server as a regular user I get the following error message “The system could not log on, because to log on to this remote console session you must have administrative permissions on this computer”?

This happens if the “Connect to console” check box in the server settings in Xtralogic RDC is ticked off (on Windows 2003 it is the same as /console option with mstsc) and an administrator user is already logged in on the server console. Before a regular user will be able to log in on the console, the administrator user needs to log off from the console.