Macdude,
try to edit /etc/modules, and include mosedev and psmouse.
That should fix your problem.
the problem was that is the module isn't loaded, the system can mount the device. Your Modules file should look somthing like this
ide-cd
ide-disk
ide-generic
psmouse <------------
mousedev <------------ them two are the two you need.
ieee80211
cpufreq_powersave
ipw2200
8139too
Hope this Helps,
Jake
Source:
http://www.gatago.com/linux/debian/laptop/5170051.html