problem with mouse driver during install / toshiba satellite 1135 laptop

[Peter Kurpis]

I am installing FreeBSD 4.7 on my laptop, and when I get to
the mouse configuration part, it seems I can't get any combination
of protocol and port to test right (i.e. for mouse movement).

Windows says it's an Alps Pointing Device, on interrupt 12.

(1) What should work?

(2) If I disable the mouse driver, will this affect my X Windows 
installation?

Please CC me on reply, as I am not a member of this group.
Thanks!