I am seeing the following only when I check this:
Intel 82801AA USB Universal Host Controller
USB Root Hub
USB Composite Device
Brother MFC3100C USB Port (Fax Modem)

I have the MFC 3100C installed but it isn't working. The only other USB port I have is where I connect either my HP215 Digital Camera or my HP flatbed Scanner. Before I reformatted my hard drive these where all working.