Kinks in cables, tight or stuck pulleys, stiff skeg releases - things lock up over winter. A good fall maintenance program usually mitigates these problems, but sometimes we forget until our first outing four months later. Usually, the same lubricant that you'd use for prevention (WD-40, Corrosion Block) can be used as the cure. If you prefer to use more environmentally friendly lubricants such as silicon, you may have to physically work the stiffness out of the moving parts and then apply the silicon (usually in a gel form). Kinks and other obstructions in cables can be worked out but should be checked as they do decrease the efficiency of the cable.