I had a set of fork legs replaced under warranty for just that problem. I've solved it in future by fitting carbon fibre fork shields from Racespec - designed to protect MX forks. They look great & fit a treat with a bit of neoprene behind them.
Mine are like that as well, although mine's a V-regd 2000 model plus theres a load of paint chipped and flaking off the bottom yoke too. Looks shite and needs brushing and painting.