Has anyone noted this problem? I open the original file and the units are metric. I change them to impirial, but only some of the actual entries values are converted. For example, when I go to impirial, the injector base flow rate chart is converted from the metric values (around 4) to the impirial values of around 33 gallons per hour. That's great since that is what you would want; however, when I go the the airflow tab for the volume of the cylinder, the value in the cell, which should be in cubic inches stays at the value of 0.75, which is the value in cubic centimeters. The stated units is cubic inches, but the retained value is way off. Similarly, when I change the units and refresh the "Out of Range" tab, I get new errors because some of the inputs were retained and not converted. It does this in more than one place, which I'd expect would be a problem. Any help?