updated 09:30 am EDT, Fri May 15, 2009
Mac OS X 10.5.7 issues
Leopard owners upgrading to Mac OS X 10.5.7 have been experiencing critical errors, discussions on Apple's support forums show. At times problems have begun as early as installation, with digital signatures being registered as invalid despite multiple download attempts. Other users have reported subsequent looping errors, which may require powering down a system and rebooting one or more times before control can be regained.
Those making it past early errors are reporting further problems, such as missing external disks and altered display resolutions. Troubleshooting measures are said to exist however, such as a five-step process to cope with looping, and a PRAM reset to fix resolutions. Regarding digital signatures, it is suggested that those affected directly download the comprehensive Combo Update instead of relying on Leopard's Software Update function.
VMware has meanwhile advised against updating to v10.5.7 if using an ATI graphics card and running 3D Windows applications through Fusion. The ATI driver in the v10.5.7 is said to break Fusion's 3D acceleration, triggering issues such as slow speed, bad rendering or outright crashes. Apple and ATI have acknowledged the matter and are collaborating on an update; VMware notes, though, that Fusion owners can continue to use v10.5.7 so long as they only load 2D Windows applications.