it happened again for the third time this week, when ever i start my car it usually shows up the the lexus logo on the nav system, tonight it didn't show up again ...it has a blank screen and didn't show the map at all...i didn't even see the lexus logo...it had a delay for about 5 seconds before the map shows up on the screen and the screen kinda got blurry...whats going on with my nav? my car has reached 57k and obviously its out of warranty. anyone experienced this? help chime in...thanx...OOOHHH my nav is NOT hacked!