I am trying to install user POI's on my touch and connect sat nav,I have copied pocketworldgps POI's onto a USB stick, when I place stick in USB port on car screen shows a message USB device detected, please wait.I then go into navigation menu, but load user POI's is grayed out, I then click remove user POI's from system, but download user POI's is still grayed. Does anyone have any suggestions....memory stick is formatted as FAT32.