[ubuntu] Sudo or GUI to disable/enable laptop touchpad?

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http://ubuntuforums.org – This post is related to information I received from this thread: http://ubuntuforums.org/showthread.php?t=1280957 but it is not necessary to read it to answer my question. I'd like to be able to disable my touchpad to try and resolve a problem I have. Is there a Terminal command or Admin. function I could use to accomplish this? Cheers! Roland (Hardware)