supersloshy (1273442) writes "The Consumerist reports an incident where an anonymous reader's netbook's protection plan was apparently voided when he installed Linux on it. "The manager of the Geek Squad informed me that installing Ubuntu Linux on my machine voided my warranty, and that I could only have it serviced if the original Windows installation was restored.", says the anonymous reader. However, his problem was because his "touchpad and power adapter had been broken", which is clearly a hardware issue. He re-installed Windows so he could have them repair his netbook, but they insisted that Linux caused the problem and kicked him out of the store."
Link to Original Source