see WMD_DESIGN.txt in wmd-0.1.2.tar.gz.
Then check if the uinpit kernel module is loaded. Just use lsmod to check wich modules are loaded. Ubuntu needed the module... s done with the modprobe command.
Here is how to check if the module is loaded, then load the modules and check again:
<code>jos@jos-ubuntu:~$ lsmod | grep input