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.
It would help if you gave the names of some of the "invisible files".
AFNI-readable datasets are stored in files whose names end in .HEAD or .nii or .nii.gz -- you won't see the other files in the directory in the AFNI GUI.
Files with names ending in .1D are text files with columns of numbers -- these are visible in the AFNI GUI, but not as 3D datasets to visualize.