Hi All, I Have just joined this forum and have a query. I searched yesterday for interference but found little reference. This is the problem I have. A mad moment a few days ago caused my to fetch my youngest son's hornby train set down from the loft, Having been there for some 20yrs. I cleaned the rails with a rubbing pad and got the system running quite good. However some sparking is noticeable from wheel areas occasionally. The main thing is that there is interference of flashing lines across the tv at the other end of the house. Would this be due to dirty rails/ connections or a more fundamental problem with the loco or power supply. Bearing in mind the age of the system. The system has not had a lot of use from new, at a guess about 15-25 hrs maximum running time. Any help /advice would be appreciated. I apologise if this is a repeat of any discussions already on the forum but If there is I was unable to find them. P.S. I am considering buying a Bachmann DCC starter set as I would like to try digital at as low a cost as possible in case it ends up like this set buried for 20yrs. I am a little older now so it may not happen. My son has just turned 29 and I will soon be 64 so maybe we will become interested this time especially as we have a spare room to use. Thanking you Martin