"Software Update could not expand the package correctly..."
I've set my Software Update to check for updates every week. Unfortunately, I've been having trouble installing the newest update. At first I thought it was just the app, the Security Update 2008-001, but now I can't install anything without getting the error message alluded to in the title. Is there something wrong with my computer? Could I have accidentally deleted something that allows me to install updates? I could live without updating Quicktime or other stuff, but the Security and MacOSX updates are pretty important and I'd like to be able to install these.
Thanks for taking the time to read this! Any help would be appreciated greatly!
Macbook Pro, Mac OS X (10.4.11)