FreeBSD 4.8-P10 --Mouse doesn't move in the console or XFree86--

[nw1]

Neither mouse will work in the console or in XFree86.

Gigabyte GA-6BXDS = main board
BIOS= AWARD (2A69KG01) ver. 4.51PG

In the PCI/ISA section of the BIOS, a USB setting of: "Assign IRQ For USB: Enabled" (is
set)
There is also a "USB Keyboard Support" setting within the BIOS's  "INTERGRATED
PEROPHERALS" section; I have tried this setting to both "Enabled and Disabled".

There aren't any other USB settings in this BIOS.

We are using these devices that are known working devices.
Mouse-1 is: Logitech | model: M-BD58 | optical corded wheel
Mouse-2 is: Logitech | model: M-RM67A | Optical cordless wheel

Our Kernel:
# USB support
device          uhci            # UHCI PCI->USB interface
device          usb             # USB Bus (required)
device          ums             # Mouse
pseudo-device   ether           # Ethernet support

Our /etc/rc.conf:
# grep -i mouse /etc/rc.conf
moused_enable="YES"
moused_port="/dev/ums0"
# grep -i usb /etc/rc.conf
usbd_enable="YES"

Our /dev:
ls -l /dev | grep -i ums
crw-rw----   1 root   operator  111,   0 Sep 27 13:16 ums0

dmesg reports:
# dmesg | grep -i usb
uhci0: <Intel 82371AB/EB (PIIX4) USB controller> port 0xa000-0xa01f irq 10 at device 7.2
on pci0
usb0: <Intel 82371AB/EB (PIIX4) USB controller> on uhci0
usb0: USB revision 1.0
ums0: Logitech USB Mouse, rev 1.10/6.10, addr 2, iclass 3/1

Upon booting into the OS, using the above BIOS, and other settings --with either of the
above devices; the mouse is seen on screen, but it refuse to respond while moving the
hand-held device.  Should we unplug one mouse (from either usb port) to test the other
mouse, we receive the following on-screen message(s), respectively of the motherboards USB
port we were using:

uhub0: device problem, disabling port 2
uhub0: device problem, disabling port 1

When we plug the devices back in to either of the motherboards mouse ports, there's no
indication at all, from the OS, that a USB device was attached.

Reminder: these devices are in perfect working order.