I have a ps/2 mouse that *did* work with slack 9. (its a ps/2 intellimouse)
Now that slack 10 is installed, I edited my /etc/X11/xorg.conf to use the protocol "IMPS/2". It seems to work, but about a minute into running gnome/kde/anyWM... The cursor freezes. (the mouse will no longer move the cursor)
The keyboard continues to work fine...
Any idea what could be causing the conflict? Do you need more information?