i have a 2007 lexus GS350. my worked demanded i relocate to the middle east, specifically, Saudi Arabia. i thought since i had just bought the car i'll take it with me. when i got here i took it to the local dealer to get a navigation DVD for Saudi Arabia, for some reason it gave me an error message. i was told that US systems have a different software thats not compatable with middle east navigation DVDs. can anyone help me with this issue?