thanks for the reply all my pumpkins came with days apart a new 1 opened everyday for about a week, they all grew together till 1 took over. the strongest was at the bottom of the plant the rest were at the top so it obviously got more nutrients because it was nearer the source. i had read about cutting the vine, but although i have a massive plant also trellised (vertical) which could also make a difference, i only have 1 main vine and everything branches out from there. and the pumpkin was on the main vine so not much to cut off. but as of posting this message i found 4 new pumpkins on the plant after it had looked like it was all over. so i think it might be a nutrient problem with mine, although i fertilized regularly. difficult to say