thanks for reply Aren.
I'm using NGUI 3.8.1.
Could I mail some texture to u plz?
I really don't know how to send Texture in the post... Although I can see them now...
Simply saying: When I move the sprite, the sprite edge changed. Some pixels will miss.
example: a sprite at localposition(0,0,0) is different from localposition(16,0,0). The sprite edge miss 1 or 2 pixels.
And UITexture also has the problem..
I'm moving them by interger value.
Thanks.