Hi, I also get this error, but it only associated with choosing filenames in the multiple structure case. So there is actually no consequence when running with a single structure like you have done. In the multiple structure case it would simply end up choosing a name with _th in it instead of _th4 (if your threshold was 4) - so again, no real problems. So just ignore this error at the moment. We will put in a fix for it in the next patch. All the best, Mark On 3 Jan 2011, at 21:13, Dana wrote: > Dear All, > > I tried to modify the boundary correction to thresh 4 in the newer version of FIRST and I typed the following command. > run_first_all -m 4 -s L_Hipp -i MPRAGE.nii.gz -o 667 > > However, I received the following error: > /Applications/fsl/bin/run_first_all: line 276: [: too many arguments > > Does anyone know why this error may be occurring and how I can fix it? > > Many Thanks, > Dana >