Hi: I'm using the 3dclust option in the PLUGINs, and I specify a fico file produced by 3dfim, with a threshold of .8, and I give it an output file. When I open the output file, it just has all the same data as the original fico file -- that is, it doesn't seem to be giving me clusters. What am I doing wrong? I am using the KEEP as type, radius=2 MinVol=1000 (or 2000 or 3000 or 4000 -- it doesn't seem to matter). Thanks, MBradley