Merv - That's an interesting question. If you're running under a Windows environment, you could go to the Control Panel and open the System dialog and then search for the device that is interfacing with the CMM's controller. If it's a standard device such as a COM port, you shouldn't have any trouble locating the device. Once you've found the device, open the Properties dialog and you should see your settings. I'm not at work, so I can't remember how Win NT handles I/O. You may need admin privileges to view these and they may be located somewhere else, but I'm sure they're at least viewable. The above describes a W9x system.