Has anyone had any experience of getting their plasma serviced or repaired by Hitachi service agents? A local agent is coming out to check out the buzzing from the power supply. They told me that they may have to take it away, and if so there will be no loan set whilst it's gone. What have other people's experiences been, Has anyone else get a loan set? and most importantly of all did any 'repairs' actually reduce the buzzing? I'm in two minds about the whole thing now as I can barely hear it the buzz and the thought of going back to my tiny CRT set for what could be weeks (or months?) is not particularly appealing.