[ubuntu] Touchpad stops working after typing

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http://ubuntuforums.org – I'm on Ubuntu 12.04 64-bit on a Dell M1330. I've been having issues with the keyboard, touchpad and media buttons. Between 1 and 10 seconds after I start typing something, the webcam light will blink and the touchpad stops working. From then on, the media buttons won't work at all. I can get the touchpad working by clicking it frantically for a few seconds, but it's a real hassle. Additionally, if I am typing a long piece (like this post), the CD drive will make a noise, the webcam flashes, and the keyboard and touchpad both will stop working for a period of time. I've looked through oth (Hardware)