So I get this brand-new HP laptop in the dead of winter, where the ambient temperature in my office is 60-70 degrees, yet the fan inexplicably fires up frequently and stays on for extended periods. For whatever reason, it does so more when it's plugged in. I can put it in sleep mode and it will stop, but when I turn it back on - you know, actually use the computer like I'm supposed to be able to do - the fan comes back on.Ridiculous...my previous HP laptop fan rarely came on, and when it did it actually made sense, i.e. I'd been using it for a while with lots of stuff going on and/or the ambient temperature was high.  But this makes no sense at all...