Hello FSL Users, I have been trying to run a 2nd "tbss_2_reg -n" in a 2nd terminal on my dual core mac to speed things up in the NxN registration. The first "tbss_2_reg -n" is running fine. The second one, which I run from the TBSS working directory as well, quickly crashes with: marc-dubins-computer:~/Data/sumit31 marc$ tbss_2_reg -n wc: .commands: open: No such file or directory 13866 Any suggestions would be greatly appreciated! Best, Marc