I just recently purchased a Polaris 9450 pool Cleaner. Is there anyone out there having the same problem as me ? it does not matter what setting I set my cleaner to "floor only or floor and wall" it always cleans the walls and tile line. This might not seem like a big problem but if I set it to the floor only setting the cleaner spends so much time cleaning the wall and tile line there is not enough time to clean the entire floor. Also is this just the start of more problems to come.