Ok, I did that, and she wrote back, saying she filed a claim with the post office to get a reimbersement to fix the sub, but she will need an invoice for the cost of the repairs... I was wondering if MR OCCD could make one of those for the driver... and if the humming is truly indicative of the capacitors going out? if so does that need to be fixed as well? either way, seems I need to get her an invoice in order to get it fixed.