thanks for the response bob, you truly are the king.
is this because we're in isotropic forced cubic voxels and AFNI wants it in anisotrpic voxels?
the thing is, we loaded everything into AFNI and even though they're already in acpc, we used AFNI to re-acpc them, and everything seemed fine. but when you click on the Tailarach, the functional (really lesion tracings) disappear or are not coregistered to the structural.
if the problem is that we're loading everything in already in acpc space, we can rotate them both just for kicks before loading them in and then use AFNI to re-acpc them and then tailarach, or do i have my steps wrong? would that solve my problem?
joel