I just ran a recon that produced a Talairach registration error.  Viewing the registration in tkregister2, it became clear that it was in fact quite off.  I tried to fix the registration manually, but there is a substantial and inaccurate shear component, and I can't seem to adjust shear in the tkregister2 controls (assuming I'm not missing something).  Is there an easy solution to this issue?  thanks,

Ben