I am so disappointed that after one year the lights on half of this tree are out. Last Christmas when the lights went out, our tree was already up and decorated. We tried to find the issue with it up, but couldn't find it. I was so bummed having to look at that the whole season, I didn't even try to find the problem before I put the tree away. I was just over dealing with it. I thought surely this year with the tree apart and empty I would be able to figure out the problem. After all, this would only be the 3rd time I am putting this tree up. Unfortunately, between my husband and I going through the lights we are unable to find the issue, except that we can see that every single light in the areas that are out are burnt out and the surrounding lights look as though they are fading too. I am not sure if it is a safety issue at this point. Needless to say, we are on the hunt for a new tree this year, which really stinks because this was a beautiful tree the first year. :(