I have an intermittent problem (about 3 times a week) where when I depress the accelerator the vehicle starts to move, then feels like the brakes are being depressed and then accelerates forward. It is much the same if someone grabs the back of your shirt when you start to walk from them - you accelerate but are being held back. In the world of carbureators this would be symptomatic of a bad accelerator. Needless to say this makes crossing a 4 lane highway exciting. Has anyone heard of a similar problem with this vehicle? The dealer and a Subaru rep could not find the problem and so have done nothing.