afni.nimh.nih.gov

Hi Mika,

Colm has a good suggestion, but I expect that you are
simply running out of RAM. I cannot tell exactly which
version of AFNI you are running, but it is probably
compiled to handle large datasets (even if on a 32-bit
system).

If you are able to open this in another program, then maybe
you just have some other programs currently running that
are taking up too much memory.

- rick