My N900 has become completely unresponsive, i.e. crashed, on 4 occasions. At each occasion the GPS was on, either with Maep or with Ovi Maps, and the device was put in a pouch or in a bag in the glove box in the car. That suggests that the GPS may have had a problem. Has anyone else experienced this problem? The device has no reset button, and I reset it by removing the battery for a few minutes. Is this really the only way to do a reset? Simon