I was having troubles with a USB logitech mouse. Mainly, the scroll wheel would not work. By hand I made sure that the folllowing was in my /etc/X11/xorg.conf file

Option “ZAxisMapping” “4 5”
Option “Buttons” “5”
Option “Protocol” “IMPS/2”

Scroll wheel working! On to the next problem, I can’t get use the CDROM…

I followed the advice given by Patrick and as root:

rm /dev/cdrom
ln -sf /dev/scd0 /dev/cdrom
chmod 777 /dev/cdrom

All was well!