pcumming

Question on Lexus LS430 GPS system-cannot read GPS CD in computer Friend has the 2004 model of this car with GPS system. Comes with a CD that is supposed to be played on a computer. He tried 2x on a 2 new PC's has had no luck. It just stops and freezes. He got a new CD from Lexus but same thing. Do you know who makes the GPS unit and hence the CD? Thanks, Peter