I've created a number of textures for SL for this that and the other thing but I've noticed with some (not all) of them that I seem to be getting a 1 pixel grey line across the top of my texture. It does not seem to be noticeable in photoshop or when I upload the image to SL.
I've tried a number of things including saving my picture in other formats to upload with out any luck.
Anyone else notice this, or have a solution for me?