My wife's mother board failed.
I took both her hard drives out and
installed them in another computer I had.

It starts to boot gets well past the bios but it hangs up
were it says on the screen "Starting Windows" above a wide
white line.

Does Windows 2000 only work on the mother board it
was installed on?

--
Paul Lamar ...No rotor no motor.

This might not work from the get go:
hit F8 a lot when you first see "starting windows".
If that works you get a boot menu
go into safe mode
go to the hardware menu in "properties" of "my computer"
uninstall all the hardware, everything
reboot and let it find hardware again