This problem started late Friday evening.  Sometimes it's so short that it doesn't turn anything off.  Other times it turns off some of the computers and I have to reset all the clocks.  It did this all late Friday evening and night.  It stopped Saturday during the day time.  WTF?  Then it started up again late Saturday evening and here I am at 2:30am Sunday morning awake because it just happened again.

I have a UPS on one of my computers that screams every time it happens.  That's how I know it didn't happen during the day (and the fact that the clocks were all still set).  This is so maddening.

None of the circuit breakers are being tripped.  I don't have the heat on (forced air).  I haven't bought any new appliances, though I could have changed the configuration of what's plugged in where and forgotten.  If some electrical device was kicking on and pulling too much power I would think that the breaker would have tripped at least once.  And why only at night (hence, why I immediately looked at the heat)?

I'm going to call some of my EE/CS friends in the morning and bug them.  Then I'm calling the power company to bitch.  They will probably tell me it's an internal wiring problem.

Ok, back to sleep... until the next power outage.