Hi I have just acquired a nuvi 2569 and I am having a nightmare. I cannot get anything to sucessfully update via Garmin Expess- it does not want ot connect to the PC without a fight and when I finally get a update sucessful message when I try to us the sat nav and get it to turn on, I get told I cant use maps as the file is correupred and to download again - which I cant now as the option is not there- any ideas anyone?