My daughter has a 54-reg Micra, with about 40,000 miles on the clock. The power steering has failed and, after trying at local garages, was told that only a Nissan dealership could help her. For £70, the fault was erased and she was told that it would probably recur. 10 days later, it has. She was quoted £2000 for a new steering column, but she cannot afford this. It is all she paid for the car and is obviously out of the question. Can you recommend a sensibly-priced way of fixing this problem?