I live in Vancouver, BC and really need my wipers, especially over the winter, and I have noticed that every now and again the arms will stop before the bottom of the cycle. They work again on the next cycle just fine if it is set to intermittent but yesterday I had just the drivers side arm stop right in the middle of my field of view while the passenger side continued to sweep just fine. Next cycle the drivers side picked up right were it left off and all was well again. Anyone else had this issue or heard of it before? It seems like a pretty minor issue but knowing my luck it's symptomatic of some major catastrophe in the making.