I was just browsing around on the net this morning, and took a look at the Maptech web sight. Just waiting on it to quit raining. They have a cursor read out for lat and lon just like other sites. But low and behold, the Maptech site shows me living at 41N, which isn't too far south of Chicago.Google Earth, the Garmin software in my computer, my chartplotter and hand held all show me living at 30.13N. I sure hope that the Maptech charts are a little more accurate than the web site. Would be kind of hard to navigate with more than 10 degrees of error.