My Cube has begun to behave very oddly. Every time I try to scan something with my Epson 3200 through PS7, PS quits. I have reinstalled the OS, PS7 and the Epson driver. No change. I tried an fsck, and every time it comes up with hundreds of lines saying something to the effect of: "Trying to enumerate USB device" - which attempt evidently fails. It says the problem is with USB hub 3. I have no USB hub, except on the back of my ACD. There is nothing plugged into it. Any idea how I can test the hardware? I've repaired permissions, run Disk Utility, etc. Unfortunately, my Disk Warrior is obsolete, and anyway that doesn't really cover hardware faults, does it? Incidentally, the scanner is plugged into my FW port.