[04Sport4wdstl]

I have a frustrating problem and I am wondering if anyone else is having this issue. I have a 04 SR5 Sport Edition and the driver's seat clicks forward and backwards as I slow down and speed up or even move around in the seat. I took it to to one dealership and they told me that while they had heard of this, there was nothing they could do as Toyota does not deem it a big enough problem. I took it to another dealership and they replaced the entire seat. It was fixed for about 1000 miles and then slowly became the same as the original seat with the movement. Does anyone else have this probelem? Also, can you buy the Limited power leater seats? I have sat on those and they do not move at all.