[VirtualTracy]

Originally Posted by zoranb

my HD has two power outlets to USB

I found the following with regards to the above:

Not all computers, including not all Macs, send the same amount of power to the USB ports. As a result, some bus powered USB drives will NOT function properly when using just one USB port on some computers. You either need to use a external power brick or use a second USB port by way of either a Y type USB cable or a second USB cable that goes from a power port on the drive to a USB port. Just about every bus powered USB drive I have ever encountered either came with a Y type USB cable or a second USB cable that goes from a power port on the USB drive to a second USB port on the computer. Does your drive has such a cable and if so, have you tried it?

Your HD's are not bus powered. The secondary USB port on the drives are for daisy chaining multiple drives together, not powering them (unless a drive is bus powered). What you need are power supplies to hook to your drives if you are going to use them with your powerbook.