I just took my brand new TomTom XXL 540M out for a 30 minute test drive. It worked flawlessly except for two issues: (1) The voice never once used a street name. The only directions spoken were, "In 400 yards, turn right," etc. I thought this model came with street names. Is there a fix for this? (2) When I mounted the device on the dashboard, I could not see what was on the screen in the sunlight. It was completely washed out by the light. Is this common to all GPS units or just with TomTom's? Thanks.