Black lines after using PackTextures()

I have a tiled based game and to increase performance I’m attempting to use PackTextures() to pack a lot of ground tiles into one texture and use the same material. I got everything working but my result ended up in black lines showing around the tiles. There are 6 different types of grass tiles, that are randomly chosen herein the picture below.

[1765-screen+shot+2012-07-09+at+3.07.10+pm.png|1765]

I tried adding padding to PackTextures with the same results. Does anyone know how to fix this?

Thanks!

Your atlas has been resized
You might be able to solve it by changing it’s max size attribute

you can also add padding so that the textures don’t overlap