On Sun, 6 Jul 2008 09:16:16 -0400, "MiamiCuse"
wrote:

The electrician told me I
should consider changing all "old wires" since they are old (1972) and may
be the cause of the problem.

I think you should change all the "old wood", since it is old (1972)
and may have problems. After all, the trees the wood, the 2x4's that
make up the frame, was made from trees that would be dead by now if
they hadn't been cut down for lumber. Dead trees are unreliable.

When you find an electrical problem, fix it. Brushing by and
touching wires that are sticking out of the box doesn't count as a
found problem to me, but as a created problem.

ALL the old wires are not the cause of the problem. At most, ONE of
the old wires is the cause, and maybe not even that many.