Thanks Bruce and Brian,

When voxel dimensions are less than 1.75, "create surface" went smoothly.

Question: The pons is still attached, I want to use

-pons-xyz X Y Z

TkMedit shows only RAS. (1) How can I have talairach coords shown up on TkMedit

(2) RAS and Talairach coords are different, but the manual says use either one. it doesn't matter?

Thanks for you answer.

Nam.