Should just straight swap and start working.
Check: That their is a Navigation disk in unit dont forget you have got a DVD Nav Computer now!
If not working it could well be that the seller didn't shut the thing down properly, as if you change them or disconnect while red light is still on it will be broke Im afraid. You must follow correct Shut Down Procedure.
If your swapping them over ensure you shut down units properly to, there is a How To on Forums.
If this is the case seek a refund.
Im sure Keith or someone else will come along with some other suggestions.
Last edited by JohnDotCom; 19th January 2007 at 16:51..
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