On Tue, 4 Feb 2003, cbirds wrote: > Dick Grable tapped out this message on 2/4/2003 4:29 PM > > >The very first sign of trouble is one of the USB ports not working > >properly. Apple replaced the motherboard (4 times now) in a five month > >period. What's causing this is a complete mystery to me and the Apple > >techs. All external USB and F/W devices are either self powered or > >plugged into a powered hub except for the mouse. > > > This is not very encouraging and I am just going to have to hope it has > something to do with a dead PRAM battery or powercord and not the machine > itself. Amazing! Don't they have a diagnostic application for OS X? Sort of like TechTool Pro by Micromat? AND...if they've replaced the motherboard FOUR times now - shouldn't they be looking at "whatever else is left"? I'd say this sounds like a lemon to me.. Best and good luck! Henry