After reading a lot of negative comments regarding the TT's customer service, I would like to add my rather pleasant experience in order to give deserved credit to Tomtom. I am in San Francisco. My one year old GO 910 developed screen image problems, ghost images flutterrd constantly. Email contact brought a reply within 6 days, the subsequent phone call was fruitful, after a few suggestions such as flash memory cleanup failed, the representative gave me an RMA number with thorough shipping instructions. I have mailed the unit to Fort Worth, Texas, and am waiting for the replacement unit. I am keeping my fingers crossed.