Did that and it didn't automatically do a download. Uninstalled Zipper, built new Zipper disc from updated files, ran it and then tweak.sh and all was good. The loaned disc was fairly old. All hacks installed correctly and I'm one happy guy. I also found how to re-enable Hackman so I can get into even deeper trouble (though I will always tiptoe carefully with it!). Unit has been happy and stable. Thanks for the help and more thanks for making customisation so easy.