Hi all, I've been lurking for some time now, and have found loads of
useful info, but now I have a problem!!

At the weekend I cladded the kitchen ceiling, which has one ceiling
rose at each end. Saturday I removed the rose, cladded and refixed -
everything working no problem. Sunday I completed the job, removeing
both ceiling rose and pull switch along the way, and replacing EXACTLY
as it was.

Well now half of the downstairs lights refuse to work, although a
voltage beep tester thing indicates there is some voltage up in the
roses of the non working ones. The fuse is fine- all sownstairs
lights are on the same one, and surely if I had inadvertantly nailed
into a cable, I would have known about it?

The house still has its original wiring, unfortunately - the pull
switch, which seems to be some kind of master (because similar houses
to mine have had all sorts of weird problems when wired incorrectly),
has three wires to one terminal, and one to the other. Unfortunately
all red!!!!!. Now obviously this worked originally, so I am boggled!

A spark friend of mine cannot understand the problem over the phone,
and I can't afford to get one in, so can anybody shed any light on the
subject? I am normally quite competent with electrics, but cannot get
my head around this!!