I'm having a problem with a TomTom ONE XL. A POI file that I downloaded from another site will not show up on the real time maps. The file shows up in my map directory and when I use the BROWSE MAPS feature I can find individual POIs but when I choose one it doesn't show up on the map. I've selectecd the POI file as one that I want to show on my map as well as set it to warn when I approach a POI. IT only happens with this one file, other POI files that I have downloaded from the otehr site work fine. I deleted and re-copied the file, no help. The file does work on anotehr TomTom unit.