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.
Hard to tell without looking in detail at what you've done. One way to get to the bottom of this is to simplify the problem to an ROI of a single voxel and very few subjects (you can acutally use 1D files as input instead of volumes). With just one voxel in the ROI, it should be easier to get things sorted out.