Since about Thursday last week, our power at the house will every once in awhile flicker.  Sometimes it will flicker so, the power goes off for a second.  Just enough to have to reset the clocks.

‘Bout midnight last night, it flickered and part of the power in the house went off for about 5 minutes.  Not the whole house just some of it.  Then it came back on.

Anybody out there have any clue what this means?  Does it sound like a problem for the Electric Company or do we need an electrician?