Steering problem

[xertia]

Hi guys, been a long time reader of these forums but never actually posted! Have recently noticed on my 98 AU Forte the steering has started making some awful creaking noises when I move the wheel left to right. Seems to be mainly when parked and does it whether the engine is running or not. Does this mean my rack is on its way out or just in need of some kind of servicing? Also, as I know f*all :togo:, what sort of cost would I be looking at to replace the rack if needed?

Thanks.