hi all my first post my wac700/05 yes i know its an old un but have been working fine up till now the last few weeks the unit has been saying please wait booting up been on for about 3 days and nothing knocked it off wait plugged back in booting up still nothing ,been reading previous posts in cafe now moved to here ,well i got it booked in with service engineer seems a common problem with these units wonder if anyone else have gone down this road before can it be fixed ,how much or anything else i need to worry about guess what i put all my music on it didnt do a back up sold my cds probably lost the lot now gutted done a harddrive test by pressing ok and vol up button when switching on results showing all zeros fail anything else i can do thanks in advance ff