Ok, this has happened a couple times to me and I'm not sure what to do in JMP.
I just asked JMP to make me a table with ~260,000 columns in it - JMP didn't like this, but it's not obviously against the rules of JSL so it tried. And tried. And tried - and half hour later I killed JMP (which I was sad about because I hadn't saved the script.
In SAS there's a button I can click to kill script execution if something is wrong. I can do the same in R. Is there some way to interrupt JMP's interpretation of my script while it's reading it?