Script cannot be modified

[john9210]

Occasionally , when I try to delete a script I get the error "This script cannot be modified in this window because it is being modified elsewhere" . What's causing this and how can I stop it? No other script refers to the script.

[Steve Martino]

Is there a "*" next to the script name, meaning it hasn't been saved?  If so, save the script, then you can delete it.