mk4 navigation dead please help!!!!

[rdonkey78]

hi all
burnt a v32 iso image at 4x speed using img burn and followed all instuctions,
screen went black, waited 30 mins then cycled key switch,
now every thing looks different and navigation option is no longer showing and
wont eject cd,

tv radio ect is o.k.
but screen has gone blue and looks very basic,

no red led on dvd navigation drive,but eject button still lit, have i killed it or can it be repaired?

any help would be very gratfully recieved