steering cable help...

Well, I took my boat out for the first time this year, and everything was going smooth when all of a sudden the steering bound up. The boat is a year old with 75 hrs on it. I detached the cable from the rudder, and the rudder works freely. Has anyone had good luck with somehow shoving grease in the cable, or am I destined for a new one? I need to know because I am supposed to leave with it for shasta friday morning. Are these things covered by warranty at all - I can call the dealer in the morning and ask but I figured you guys might know right now. Any input on the subject is appreciated.