I'm trying to wire a two-way, two-gang switch. There are two red wires for each of the two lights that I am trying to wire to the switch and it looks as though I only have one live on one of the sets of wires. Does this mean there is actually a problem with one of the light fittings??? Anyway, I have tried every which way I can to try and get it work and the only thing I seem to be able to do is get the light that has the live wire to work on both gangs of the switch (???!!!). Can someone help me...?