keyboard and USE mouse have no response in X

[makefile]

My computer is Thinkpad R61i 7732BGC.My system is FreeBSD-7.2-BETA1.
Everything was fine in the console.Both the keyboard and USB mouse can not work in the X.I don't know why.
But the USE mouse still can not work in the X.
I say my keyboard can not work,because I can not use Ctrl+Alt+Backspace to kill X,and there is no response in X whether I type anything.If I type Alt+F1,just go back to the consol where I startx.

I tried to a way what I just heard.Use sysinstall to set the mouse daemon disabled,and change /etc/X11/xorg.conf.
Section "InputDevice"
    Identifier  "Mouse0"
    Driver      "mouse"
    Option      "Protocol" "auto"

Just change to "Protocol":
    Option        "Protocol" "/dev/usm0"

But my USB mouse still can not work.Also my keyboard.

I need a help.I am a novice.