This morning I got into my CL and turned the heat on by the auto button. only the drivers side vent came on. After the car had warmed up the other vents started to come on, but at low speed. I turned the temp dial to the cooler side and the vents worked fine. All the vents were strong. Back to the heat side and the vents only worked on the drivers side. I'm sure that this is not normal, but how many have had this problem? How can I fix it? Could my computer have the FLU?