Hmmm,

I've connected the cables from the usb port on the front of my tower with the right pins on the motherboard and booted my Peg. Alas, Poseidon showed only the two onboard hubs. I checked the history, and there was an error message, saying that "uhciusb.device unit 2 failed device/unit failed to open (-1)". Any ideas?

I 've the same error message here, however all my USB ports works well
(mouse, hub, floppy drive, USB key, joypad; keyboard ...)

Bye

You mean, even with the error message, the internal usb port (leading to the front of the tower) works?

------edit-------
It works thanx nicoppc!