We are very pleased to announce that the new AFNI Message Board framework is up! Please join us at:
https://discuss.afni.nimh.nih.gov
Existing user accounts have been migrated, so returning users can login by requesting a password reset. New users can create accounts, as well, through a standard account creation process. Please note that these setup emails might initially go to spam folders (esp. for NIH users!), so please check those locations in the beginning.
The current Message Board discussion threads have been migrated to the new framework. The current Message Board will remain visible, but read-only, for a little while.
My guess is that you need an orientation like "-orient RAI", for instance. The last letter of the orientation, the 'kth' direction, can't be determined with only a single slice. If you expect these to be similar, use an orientation you know these to be acquired in or the first two letters of the orientation from the interactive session. Be careful about left-right directions.