Tilt buttons and MX400 mouse under Fedora FC8

Spent a fruitless evening messing with xorg.conf trying to get the tilt buttons (6 and 7) working under FC8. Buttons 1..3, 4 & 5 (the wheel) and 8 & 9 (the side buttons) all work but not 6 and 7.

A bunch of guides on the net are either obsolete or just dont work. When I try get evdev to auto detect the mouse:

Option      “evBits”        “+1-2”
Option      “keyBits”       “~272-287”
Option      “relBits”       “~0-2 ~6 ~8”
Option      “Pass”          “0”

OR when I try:

Option      “Device” “/dev/input/event2”

OR when I try:

Option      “Name”   “Logitech USB-PS/2 Optical Mouse”

(from /proc/bus/input/devices) then X starts with a mouse cursor but its motionless and unresponsive to clicks.

I’m back to using

Driver      “mouse”
Option      “Protocol” “ExplorerPS/2”
Option      “Resolution” “800”
Option      “Device” “/dev/input/mice”
Option      “Buttons” “9”
Option      “ButtonsMapping” “1 2 3 4 5 6 7 8 9”
Option      “ZAxisMapping” “4 5”