I just purchase the TomTom XXL540TM GPS and am trying to set it up as best I can. I have owned Garmin GPS' for several years and am quite proficient at setting up POI's on my Garmin models. But, I wanted to give TomTom a try. I downloaded and installed TomTom Home and was able to update the device and install the updated maps. All went well until I tried to install the Red Light Camera data on the GPS. I have tried several times both yesterday and today and I keep getting an internal server error. Since I was able to download everything else I tried from TomTom, I assume there is an error at TomTom. My question now is can I install the POI's I download from POI Factory onto the TomTom. For example - the Red Light Cameras. I have read somewhere that the audio file must have an .ogg extension. I haven't see a red light aural alert with that extension. Where is the best place to download POI's for the TomTom? Thanks for any help.