Thank you for your input! It works great for me, it isn't working at all for my friend. All of the normal permissions are set to copy, no modify, no transfer. It's just the permissions on the Content tab itself, I had unchecked everything thinking that affected the owner (trying to hide the script from others, but that's what no modify does...), so since I can't find any reference to what "Content Permissions" actually do, I'm going to turn them all back on and see if that helps. If not, I'll probe deeper.
Thanks!