My laptop hangs/freezes but only when it's idle.

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http://crunchbang.org – This may or may not be the problem.  I notice if I have iceweasel on certain websites (those that run scripts) and leave themachine alone, iceweasel will hang, and hence, the entire computer box.  It takes forever to kill iceweasel.Study what you have running before you say good night - maybe open a terminal and enter "top" and see what is onit the next morning.Sheng-Chieh (HowTos)