usbd does not detect USB mouse at startup

[Victor Poriazov]

Hello,
I have recently installed FreeBSD 4.8 and I'm having prbolems with usbd not 
detecting my Logitech USB optic wheel mouse at startup.(the mouse is plugged 
in.) However, usbd detects the mouse if I plug it in after the system 
startup and runs moused and there are no problems at all.
Here is what i have in my rc.conf:
============
moused_enable="NO"
moused_type="auto"
usbd_enable="YES"
============
and here is what dmesg shows about the usb devices:
============
uhci0: <VIA 83C572 USB controller> port 0xd400-0xd41f irq 10 at device 7.2 
on pci0
usb0: <VIA 83C572 USB controller> on uhci0
usb0: USB revision 1.0
uhub0: VIA UHCI root hub chan 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
============
Strangely, I have ums0 compiled into the kernel ( I'm using the generic 
kernel) and ums0 is not initialised when the kernel loads. 

Any suggestions what to do to get the mouse initialise at startup? 

Thank you in advance,
Victor Poriazov