[/quote]If you spent over 18K on 2 machines that were brand new and they didnt work you wouldnt bother sending a polite letter of disappointment to the manufacturer? I've done them a favour by spending 5 hours already repairing the machines. Unfortunately I dont have replacement boards or motors for the remaining issues.
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I think Stern owe you at the very least a very huge SORRY.
There is no excuse for this at all.