dual-head setup question

[albi]

1)
i've set up a dual-head machine (2 monitors, 2 ps/2 kbd, 2 usb-mice,
gdm,esp.http://www.tldp.org/HOWTO/XFree-Local-multi-user-HOWTO/index.html
was helpful)

and it works fine, except for one rather annoying problem, when 1 user
logs out, the other user's screen gets completely messed up
(ctrl-alt-backspace "brings it back")

is there a fix for this ?

2)
could not find this on the net [yet].. is the logitech mini optical
mouse supported by linux ?

-- 
grtjs, albi
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