freebsd 7-BETA4+MS USB Wireless Mouse

[freebsd]

    Hi All
I've just installed Freebsd 7-Beta4 and I cannot get my mouse to work.
During the boot I can see that the mouse is detected

ums0: <Microsoft Microsoft USB Wireless Mouse, class 0/0, rev 2.00/0.13, 
addr 2>  on uhub1
ums0: 5 buttons and a TILT dir.

but it doesn't move

I tested with moused and I got the following
 
freebsd# moused -f -d -p /dev/ums0 -t auto
moused: proto params: f8 80 00 00 8 00 ff
moused: port: /dev/ums0  interface: usb  type: sysmouse  model: generic
moused: received char 0x87
moused: received char 0x0
moused: received char 0x1
moused: received char 0x1
moused: received char 0x1
moused: received char 0x0
moused: received char 0x0
moused: received char 0x7f
moused: assembled full packet (len 8) 87,0,1,1,1,0,0,7f
moused: tv:  1197798434 122191
moused: flags:80000000 buttons:00000000 obuttons:00000000
moused: activity : buttons 0x00000000  dx 1  dy -2  dz 0

after that mouse hangs

usbdevs output:
Controller /dev/usb3:
addr 1: full speed, self powered, config 1, UHCI root hub(0x0000), 
VIA(0x0000), rev 1.00 port 1 addr 2: low speed, power 50 mA, config 1, 
product 0x00b9(0x00b9), vendor 0x045e(0x045e), rev 0.13
port 2 powered

How can I get my mouse to work?


Regards
Zbyszek