I just built a new machine. Now my understanding of USB 2.0 was that you could still use USB 1 devices in USB 2.0 ports, I loaded this PC with 7 USB2.0 ports. I'm running XP Pro, and installed my Epson Stylus Photo 1200 using the USB connect. Prints fine while working in the OS. My problem is I restart and the PC locks on the BIOS screen right after it lists the CPU, telling me the CPU ID number as if it had changed, and won't go any further also won't let me hit delete to enter BIOS settings. I shut powersupply down, unplug my USB printer and presto it boots up just fine. Any ideas anyone? The USB ports are 2 located on the mobo, 3 on a PCI expansion card, and 2 on the front of the case.