I have no problems running the script, now have it on my shelf working properly. Here's the steps i took. Copied GI_Joe.mel and GIJoe.lights into my scripts directory.... C:\Documents and Settings\user\My Documents\maya\4.0\scripts Opened Gi_Joe in wordpad and changed the path to the lights... C:/Documents and Settings/user/My Documents/maya/4.0/scripts/GIJoe.lights Notice you have to change \ to / for the path. Then saved. I then loaded a scene in Maya. Open the script editor and open the GI_Joe script. In the command line type GI_Joe; In the script editor, middle mouse drag the text i have highlighted onto the shelf, see below.. Then i just changed the icon. Works fine for me straight from the shelf.