I don't know if it is related with this :
(i can't select "first frame index" neither "point scale" options.. i don't know why).
I think it could also be because when i open my maya scene, it says that it can't found the image "clip1_project00000" but i never used that image for the sequence in MatchMover, my sequence starts in "clip1_project00220".
i would appreciate you people helping me! Thanks in advance! (by the way, sorry if my english isn't good enough!!)