My 2000 Alfa Ideal has been sitting for about a year and trying to get it back into shape and the slides were out because I had family and friends over and that is where they wished to lay their heads. Now we are ready to take it out and one slide moved in very slowly and one was moved in manually. The third is the big living room and will move in slowly about 5 inches. Then it just stops. Any idea before I call the real experts on how to get it in.