setting up xorg on an ibm t40 under freebsd 5.4

[st.john]

Hi Guys,
hope this isn't off topic or the wrong list. I am trying to setup x11 on 
an ibm t40 laptop. When I run the config command 'xorgcfg -config' the 
graphical setup interface starts but I am unable to use the keyboard or 
mouse and hence the setup facility is unusable. Any help as to how I can 
resolve this problem would be greatly appreciated.

many thanks,

St.john