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My computer system hangs once in a blue moon when I am surfing certain websites such as Yahoo. The whole screen would freeze, except for the mouse pointer which I can still move around. It doesn't seem to respond to any keyboard inputs and mouse clicks. Is there a way to safely recover from this situation short of hitting the reset button, which I think isn't as safe?

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Have a system monitoring software run in the background so that you can see if the CPU or RAM usage spikes during that. Also, hit Ctrl+Print+K to restart the X-Server. –  Bobby Jun 25 '12 at 8:51
what do you exactly mean by "safe"?...i have hit the reset button a 100 times... –  tumchaaditya Jun 25 '12 at 9:14
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