My 1997 Subaru Impreza Outback, with 137, 00 miles, has suddenly developed a problem. When I start it up in the morning the steering wheel is very hard to turn. After turning it and driving less than 1/2 block, it turns OK. The dealer mechanci flushed and filled the power steering fluid; he said the old fluid was grey, which made him think it was an internal problem with the rack and pinion. He also replaced a torn boot. The problem is still there. We're reluctant to put almost $1200 into a car with this kind of mileage, and are told that the rack and pinion can't be visually inspected to detect problems. He said he checked the pump and the belt, and that they're OK. This car has been a sturdy little beast. What do you think?