I have a mac mini firewired to two glyph drives and then to an MBox2Pro. The MBox died and I couldn't boot up ProTools because it didn't see any Digi hardware. Digi fixed the box but I still have the same problem. They are now sending me a replacement box. One of the Digi techs suggested that my equipment was putting out a bad signal or too much voltage on the firewire line and blowing the power input of the box. How can I test this out before I blow another box? If this were true, wouldn't one of the other drives on the firewire daisychain also blow? I have no problem reading from the drives. Are there service people who can do this? How can I find what nominal specs are for a firewire connection? Is there a way to hook up a scope? Thanks. Trying to avoid another eve MBox of destruction.