Today when I turned my driver side key it worked stiffly in the clockwise direction. It will click as if unlocked, but it's not. If I hold the key in the turned position, and simultaneously lift the door handle, it's still locked. Then if I release the key, it springs back to center position, accompanied by a locking sound, as if relocking itself. Turning to lock then relock won't help. It's done this before but somehow corrects itself. I do have Lockzilla. Once before I opened it by reaching across from the passenger side. When unlocking on the passenger side, I don't hear any corresponding click on the driver side. Any ideas on a cure? -Wayne 11174