[ubuntu] keyboard failing and keys stuck - dell studio laptop

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http://ubuntuforums.org – Hello, I have ubuntu 9.10 karmic koala and since one of the updates the keyboard has started to miss keystrokes and get keys stuck. I start getting things like "anddddddddddddddddddd" in the middle of my texts. I have checked on windows and previous live versions of ubuntu and it is fine. Any ideas? ~Dimas~ (Hardware)