The recent Java & security update (2010-005) has been an unmitigated disaster, but it gets worse. Having made the update, Aperture gave all sorts of problems. I repaired permissions, but that indicated loads of 'Open Error 5' messages. Verifying the disk indicated that I needed to repair the disk, so I tried that. It reported that disk was liable to fail & to repair from the OSX (Snow Leopard) install disc. Tried that, & it couldn't make the repairs. So I've had to erase the disk & reload the OS, gradually going through the process of updates & reintroducing applications from Time Machine. All is well. I even managed to install the Java & security update that seemed to cause the problem in the first place. But then comes Aperture. I've tried reloading from Time Machine, even loading Aperture fresh from the original disks (1.5 & 3 upgrade). Each time, it will not launch, giving me a "Warning: update failed" message.
Having got the OS working fine, I'm reluctant to simply do a complete Time Machine restore of the whole hard drive (with no guarantee that it'll work any better anyway), but how on earth do I get Aperture back?
Any constructive advice would be very welcome.