OUR HOUSE WAS BUILT IN 1931. RECENTLY WE HAVE NOTICED THAT WHEN LARGER APPLIANCES ARE RUNNING (LIKE WASHING MACHINE, DISH WASHER, & MICROWAVE OVEN) THE LIGHTS THROUGHOUT THE HOUSE FLICKER. THE PROBLEM SEEMS TO BE GETTING WORSE. I HAVE CHECKED THE CONNECTIONS AT THE SERVICE PANNELS AND THE CIRCUIT BREAKERS BUT HAVE NOT FOUND THE PROBLEM. DO YOU HAVE ANY SUGGESTIONS? THANKS, CRAIG