I followed the link for you, the solution is simple. Press CTRL+ALT+F2
type:

modprobe -r usbmouse
modprobe hid

Press CTRL+ALT+F5
That's it.

If you did a hd install, edit the /etc/modules.conf file and add the hid key word at the end of the appropriate line (every line containing something that looks like uhci-usb)

It worked for me!