I have a Dell Dimension 4600 computer (4 months old) I just bought a 128 meg. flash drive. If I plug the flash drive in any of the "BACK" USB ports, it is recognized by the computer. But the flash drive is NOT recognized when I plug it into the two FRONT ports. I have checked the cables etc. There are two cables that come from the front ports. Each cable has about 6 small wires inside. These two cables ARE connected to the motherboard. I then ran the Dell diagnostics, and it found nothing. I guess if it could not find the USB ports, it could not find a problem either !!!! Someone mentioned that maybe the Bios has to be enabled to recognize the front ports ??? How do I do that ??