As many would be aware, and many may be suffering from, 10.5 and in particular 10.5.2, has been causing many people headaches with permissions and ownership of files and folders, particularly temporary folders. This has been causing odd problems ranging from failed software installs, script errors, Preview silently failing to open images, and a biggie for me, the GUI version (but not the command line version) of Software Update failing with a -3001 error, referencing a network failure.In various forums around the usual places, many working band-aids involving a chown here, a chmod there, or up to and including an Eerase-and-reinstall have been used to alleviate the suffering. After much frustration and poking around, I finally noticed that my login was no longer part of group wheel. I understand from various forum posts that under 10.5 this was ...